{ "id": "29e89491b7769c9cc6e8b6591c03ae8b141723e5", "text": "PHILOSOPHICAL TRANSACTIONS,\nOF THE ROYAL SOCIETY OF LONDON.\n\nVOL. LXXI. For the Year 1781.\n\nPART I.\n\nLONDON,\n\nSOLD BY LOCKYER DAVIS, AND PETER ELMSLY,\nPRINTERS TO THE ROYAL SOCIETY.\n\nMDCCLXXXI.\nADVERTISEMENT.\n\nThe Committee appointed by the Royal Society to direct the publication of the Philosophical Transactions, take this opportunity to acquaint the Public, that it fully appears, as well from the council-books and journals of the Society, as from repeated declarations, which have been made in several former Transactions, that the printing of them was always, from time to time, the single act of the respective Secretaries, till the Forty-seventh Volume: the Society, as a body, never interesting themselves any further in their publication, than by occasionally recommending the revival of them to some of their Secretaries, when, from the particular circumstances of their affairs, the Transactions had happened for any length of time to be intermitted. And this seems principally to have been done with a view to satisfy the Public, that their usual meetings were then continued for the improvement of knowledge, and benefit of mankind, the great ends of their first institution by the Royal Charters, and which they have ever since steadily pursued.\n\nBut the Society being of late years greatly enlarged, and their communications more numerous, it was thought adviseable, that a Committee of their members should be appointed to reconsider the papers read before them, and select out of them such, as they should judge most proper for publication in the future Transactions; which was accordingly done upon the 26th of March 1752. And the grounds of their choice are, and will continue to be, the importance and singularity of the subjects, or the advantageous manner of treating them; without pretending to answer for the certainty of the facts, or propriety of the reasonings, contained in the several papers so published, which must still rest on the credit or judgment of their respective authors.\nIt is likewise necessary on this occasion to remark, that it is an established rule of the Society, to which they will always adhere, never to give their opinion, as a body, upon any subject, either of Nature or Art that comes before them. And therefore the thanks, which are frequently proposed from the chair, to be given to the authors of such papers, as are read at their accustomed meetings, or to the persons through whose hands they receive them, are to be considered in no other light than as a matter of civility, in return for the respect shewn to the Society by those communications. The like also is to be said with regard to the several projects, inventions, and curiosities of various kinds, which are often exhibited to the Society; the authors whereof, or those who exhibit them, frequently take the liberty to report, and even to certify in the public newspapers, that they have met with the highest applause and approbation. And therefore it is hoped, that no regard will hereafter be paid to such reports, and public notices; which in some instances have been too lightly credited, to the dishonour of the Society.\nCONTENTS\n\nOF\n\nVOL. LXXI. PART I.\n\nI. A NATURAL History and Description of the Tyger-cat of the Cape of Good Hope. By John Reinhold Forster, LL.D. F. R. and A. S. page 1\n\nII. Experiments and Observations on the specific Gravities and attractive Powers of various saline Substances. By Richard Kirwan, Esq. F. R. S. p. 6\n\nIII. Account of the violent Storm of Lightning at East-bourn, in Sussex, Sept. 17, 1780; communicated by Owen Salisbury Brereton, Esq. F. R. and A. S. p. 42\n\nIV. An Account of the Harmattan, a singular African Wind. By Matthew Dobson, M.D. F.R.S.; communicated by John Fothergill, M.D. F.R.S. p. 46\n\nV. Essay on a new Method of applying the Screw. By Mr. William Hunter, Surgeon; communicated by Lieutenant General Melville, F.R.S. p. 58\n\nVI. An Account of the Turkey. By Thomas Pennant, Esq. F. R. S.; communicated by Joseph Banks, Esq. P. R. S. p. 67\n\nVII. Account of a Nebula in Comâ Berenices. By Edward Pigott, Esq. In a Letter to Nevil Maskelyne, D. D. F. R. S. and Astronomer Royal. p. 82\nVIII. Double Stars discovered in 1779, at Frampton-house, Glamorganshire. By Nathanael Pigott, Esq. F. R. S. Foreign Member of the Academies of Brussels and Caen, and Correspondent of the Royal Academy of Sciences at Paris; communicated by Nevil Maskelyne, D. D. F. R. S. and Astronomer Royal. p. 84\n\nIX. An Account of the Ganges and Burramputer Rivers. By James Rennell, Esq. F. R. S.; communicated by Joseph Banks, Esq. P. R. S. p. 78\n\nX. Astronomical Observations on the Rotation of the Planets round their Axes, made with a View to determine whether the Earth's diurnal Motion is perfectly equable. In a Letter from Mr. William Herschel of Bath to William Watson, M. D. F. R. S. p. 115\n\nXI. Some Account of the Termites, which are found in Africa and other hot Climates. In a Letter from Mr. Henry Smeathman, of Clement's Inn, to Sir Joseph Banks, Bart. P. R. S. p. 139\n\nXII. An Account of several Earthquakes felt in Wales. By Thomas Pennant, Esq. F. R. S. in a Letter to Sir Joseph Banks, P. R. S. p. 193\n\nXIII. Extract of a Letter from the Right Honourable Philip Earl Stanhope, F. R. S. to Mr. James Clow, Professor of Philosophy in the University of Glasgow. Dated Chevening, February 16, 1777. p. 195\n\nXIV. Extract of Two Meteorological Journals of the Weather observed at Nain in 57° North Latitude, and at Okak in 57° 20' North Latitude, both on the Coast of Labrador. Communicated by Mr. De la Trobe. p. 197\n\nXV. A Meteorological Journal kept at the House of the Royal Society, by Order of the President and Council. p. 197\nTHE LIST\nOF\nTHE ROYAL SOCIETY.\nMDCCLXXXI.\n\nHis Sacred Majesty King GEORGE III. Patron.\nHis Sac. Maj. STANISLAUS AUGUSTUS,\nKing of POLAND.\nHis Sacred Majesty CHRISTIAN VII.\nKing of DENMARK.\n\nHis Royal Highness WILL. HEN. Duke of Gloucester.\nHis most Serene Highness CHRIST. FRED. CHARLES ALEX.\nMargrave of BRANDENBURG Anspach and BAYREUTH.\nHis most Serene Highness CHARLES WILLIAM FERDINAND\nDuke of BRUNSWICK.\nHis most Serene Highness CHARLES Margrave of BADEN.\nHis most Serene Highness PETER Duke of COURLAND.\n\nTHE PRESENT COUNCIL.\n\nSir JOSEPH BANKS, Bart. President, F.A.S. Trust. Br. Mus.\nAc. Imp. Petrop. R. Holm. et Madrit. Soc.\nR. Gotting. Lund. Gedan. Rotterd. et Nat.\nScrutat. Berolin. Socius, Acad. R. Par. Cer.\nSir George Baker, Bart. F.A.S.\nPhysician to her Majesty.\nSir James Burrow, Knt. V. P.\nF. A. S. Soc. Antiqu. Cassell. Soc.\nJohn Campbell, Esq. Vice Admiral of the White.\n\nThe Rev. Anthony Hamilton,\nD. D. F. A. S.\nThe Rev. Samuel Harper, M.A.\nRobert Banks Hodgkinson, Esq.\nF. A. S.\nGeorge Keate, Esq. F.A.S.\nTho. Earl of MACCLESFIELD.\nThe Rev. Nevil Maikelyne, D.D.\nAfr. Roy. Acad. Imp. Petr. Soc. R. Ups.\n& Gott. Soc.\n\nA Paul\nTHE PRESENT COUNCIL.\n\nPaul Henry Maty, A.M. Sec.\nConst. John Lord Mulgrave,\nV.P. F.A.S. M.P. Lord of the Admiralty.\nSir William Musgrave, Bt. V.P.\nF.A.S. Commissioner of the Customs.\nJoseph Planta, Esq. Sec.\n[Soc. Antiqu. Cassell. Soc.]\nSir George Shuckburgh, Bart.\nF.A.S.M.P., Ac.Sc.et Hum.Lit. Lug.Soc.\n\nGeorge Steevens, Esq. F.A.S.\nThe Rev. George Stinton, D.D.\nF.A.S.\n\nRichard Warren, M.D.F.A.S.\nPhysician to his Majesty.\nBenjamin Way, Esq. F.A.S.\nSamuel Wegg, Esq. Treas. V.P.\nF.A.S.\n\nHOME MEMBERS.\n\nRobert Adam, Esq. F.A.S.\nJohn Willett Adye, Esq. F.A.S.\nEdw. Earl of Aldborough,\nF.A.S.\n\nJohn Alstroemer, Esq. Sec. R. Lund.\n[& Gothob. Soc.]\nGeorge John Visc. Althorp,\nM.P.\nJohn Anderson, A.M. Prof. Nat.\nPhil. Glasg.\nThomas Anguish, Esq. Master in Chancery.\nJohn Arbuthnot, Esq.\nShuckburgh Ashby, Esq.\nThomas Astle, Esq. F.A.S.\n[Soc. Antiqu. Cassell. Soc.]\nJohn Duke of Athol.\nGeorge Atwood, M.A.\n\nAlexander Aubert, Esq.\nHeneage Earl of Aylesford.\n\nJohn Bagnall, Esq.\nRoger Baldwin, M.A.F.A.S.\nEdward Bancroft, M.B.\nSir Robert Barker, Knt.\nHon. Daines Barrington, F.A.S.\nCharles Moss, Lord Bishop of Bath and Wells.\nMr. David Bayford.\nT. Butterworth Bayley, Esq.\nMr. John Belchier.\nBernardo de Beluga, LL.D.\nRich. H. Alex. Bennet, Esq.\nF.A.S.\n\nThe\nHOME MEMBERS.\n\nThe Rev. John Blair, LL.D.\nF. A. S.\n\nBenjamin Booth, Esq.\nR. Wilbraham Bootle, Esq.\nThomas Brand Hollis, Esq. F.A.S.\nGustavus Brander, Esq. F. A. S.\nTruf. Br. Mus. Sec. Phys. Galan. Soc.\nOwen Salisbury Brereton, Esq.\nF. A. S.\n\nEdward Bridgen, Esq. Tr. A.S.\nRichard Brocklesby, M. D.\nRobert Bromfield, M. D.\nWilliam Brown, Esq.\nIsaac Hawkins Browne, Esq.\nWilliam Brownrigg, M. D.\nJames Bruce, Esq.\nPatrick Brydone, Esq.\nDavid Earl of Buchan, F.A.S.\nCharles Burney, Mus. D.\nRobert Burrow, Esq.\nGeorge Buxton, M. D.\n\nMajor William Calderwood.\nSir James Caldwall, Bart.\nJohn Call, Esq.\nCharles Lord Camden.\nPeter Canvane, M. D.\nFrancis Marq. of Carmarthen, F. A. S.\nJohn Carnac, Esq. F.A.S.\nJohn Josh. Lord Carysfort.\n\nMr. Tiberius Cavallo.\nLord Ch. Cavendish, Truf.\nBr. Mus.\nHenry Cavendish, Esq. F. A. S.\nTruf. Br. Mus.\nJohn Caverhill, M. D.\nWade Toby Caulfield, Esq.\nMr. Charles Cazaud.\nSir William Chambers, K. P. S.\nF. A. S. Ac. R. Holm. Soc.\nJames Earl of Charlemont,\nF. A. S.\nPhilip Earl of Chesterfield.\nJohn Earl of Clanricarde,\nF. A. S.\nCharles Collignon, M. D. Prof.\nAnat. Camb.\nMr. Charles Combe, F. A. S.\nWilliam Constable, Esq. F.A.S.\nThe Rev. William Cooper, D.D.\nRobert Salisbury Cotton, Esq.\nF. A. S.\nMr. Jo. Lodge Cowley.\nGeorge Nassau Clavering\nEarl Cowper, Prince of the\nHoly Roman Empire.\nPatrick George Craufurd, Esq.\nThe Rev. Thomas Crofts, M.A.\nF. A. S.\nThe Rev. Sir John Cullum,\nBart. F. A. S.\nHOME MEMBERS.\n\nJohn Cuthbert, Esq. F.A.S.\nWilliam Cullen, M.D. Physician to his Majesty, Prof. Med. Edinb.\n\nHenry Dagge, Esq.\nAlexander Dalrymple, Esq. F.A.S.\nMr. James Dargent, F.A.S.\nJohn Darker, Esq. F.A.S.\nRt. Hon. William Earl of Dartmouth, Lord Privy Seal, Trust. Br. Mus.\nErasmus Darwin, M.D.\nPaul Prince Daschkaw of the Russian Empire.\n\nHenry Dawkins, Esq. F.A.S.\nSolomon Dayrolle, Esq.\nEdward Delaval, Esq. Soc. R. Gott.\n[Up]. et Insr. Bonon. Soc.\nThomas Dickson, M.D.\nHon. Charles Dillon Lee.\nThomas Dimsdale, Esq. M.P. Baron of the Russian Empire.\nRobert Dingley, Esq.\nAbraham Dixon, Esq.\nJeremiah Dixon, Esq.\nWilliam Dixon, Esq.\nMatthew Dobson, M.D.\nSir Charles Douglas, Bart. Captain in the Royal Navy.\n\nThe Rev. John Douglas, D.D. F.A.S.\nMatthew Duane, Esq. F.A.S. Trust. Br. Mus.\nAndr. Coltee Ducarel, LL.D. F.A.S. Soc. Antiqu. Cassell. Soc.\nDaniel Dumaresque, D.D.\nThomas Dummer, Esq.\nLieut. Col. Thomas Dundas, M.P.\nFrancis Duroure, Esq.\nLieut. Col. John Duroure.\nThe Rev. Lewis Dutens, M.A. [Ac. R. Inscr. et Hum. Lit. Paris. S.\nThe Rev. Philip Duval, D.D.\n\nWill. Benson Earle, Esq. F.A.S.\nJohn Elliott, Esq. Captain in the Royal Navy.\nHenry Ellis, Esq.\nJohn Ellis, Esq. F.A.S.\nRt. Hon. Welbore Ellis, M.P. Treasurer of the Navy, Trust. Br. Mus.\nCharles Dodgson, L.Bp. of Elphin.\nThomas Emlyn, Esq.\nSir Hen. C. Englefield, Bt. F.A.S.\nBrownlow Earl of Exeter, F.A.S.\nJohn Ross, L.Bp. of Exeter.\n\nWilliam\nHOME MEMBERS.\n\nWilliam Falconer, M.D.\nWilliam Farr, M.D.\nWilliam Fauquier, Esq.\nSamuel Felton, Esq. F.A.S.\nKeane Fitzgerald, Esq.\nSir Martin Folkes, Bart.\nGeorge Fordyce, M.D.\nMr. George Forster, Ac. R. Matr.\nSoc. R. Hafn. Nat. Scrutat. Berol. Socius,\n&c. R. Gott. Corresp.\nJohn Reinhold Forster, LL.D.\nF. A. S. Acad. R. Holm. et Madrit.\nSoc. R. Upsal. Gott. Hafn. Gotbob. Gedan.\net Nat. Scrutat. Berolin. Socius, Acad. R.\nScient. & Acad. Inser. Paris. Corresp.\nThomas Forster, M.A.\nAnthony Fothergill, M.D.\nThomas Frankland, Esq.\nBenjamin Franklin, LL.D.F.A.S.\nAc. R. Par. Soc. R. Gotting. & Med.\nParis. Soc.\nNaphtali Franks, Esq.\nHon. Archibald Campbell Fraser.\nSir Charles Frederick, K.B.F.A.S.\nSurv. Gen. of Ordnance, M.P.\nJohn Frere, Esq. F.A.S.\nLieut. Col. William Fullarton.\nAlex. Garden, M.D. Soc. R. Ups. Soc.\nMaxwell Garthshore, M.D.\nMr. Francis Geach.\nThomas Giborne, M.D. Physician to his Majesty's Household.\nThe Rev. Samuel Glaffe, D.D.\nLieut. James Glenie.\nWilliam Mann Godschall, Esq.\nF. A. S.\nThe Rev. Isaac Gofflet, M.A.\nRichard Gough, Esq. Dir. A. S.\nThe Rev. Richard Gould, D.D.\nJohn Grant, Esq.\nCharles Gray, Esq. Trust. Br. Mus.\nEdward Whitaker Grey, M.D.\nThe Rev. Richard Green, D.D.\nJohn Greg, Esq.\nHon. Charles Greville, F. A. S.\nM. P. Lord of the Admiralty.\nMr. Richard Grindall.\nSteddy Grinfield, Esq.\nRICHARD Lord GROSVENOR.\nHugh Hamersley, Esq. F. A. S.\nHon. Charles Hamilton.\nThe Rev. Hugh Hamilton, D.D.\nHon. Sir Wm. Hamilton, K.B.\nF. A. S. His Majesty's Envoy Extra and Plenipotentiary at the Court of Naples.\nROBERT Viscount HAMPDEN,\nF.A.S.\nPHILIP Earl of HARDWICKE,\nF. A. S.\nMr. William Harrison.\nEdward Hasted, Esq. F. A. S.\nGeorge\nHOME MEMBERS.\n\nGeorge Finch Hatton, Esq.\nAlexander Hay, M.D.\nRichard Hazard, Esq.\nThomas Healde, M.D. Prof.\nMed. Greb.\nThe Rev. Benjamin Heath, M.A.\nF. A. S.\nJohn Heathcote, Esq.\nSir Thomas Heathcote, Bart.\nWilliam Heberden, M.D.F.A.S.\nThe Rev. Samuel Hemming,\nM. A.\nJohn Henniker, Esq.M.P.\nMr. Thomas Henry.\nThe Rev. William Henry, D.D.\nMr. William Hey.\nWills Earl of Hillsborough,\nSecretary of State, Trust. Br.\nMus.\nThe Rev. Joseph Hoare, D.D.\nSir Henry Hoghton, Bart. M.P.\nPeter Holford, Esq. F.A.S. Master in Chancery.\nJohn Zephan. Hollwell, Esq.\nEdward Hooper, Esq. Commissioner of the Customs.\nHon. Charles Hope Wier.\nJohn Hope, M.D. Prof. Bot.\nEdinb.\nMr. Daniel Hopkins.\nRichard Cope Hopton, Esq.\nThe Rev. Thomas Hornsby,\nM. A. F. A. S. Savil. Prof.\nAfron. Oxf. R. Soc. Gott. Soc.\nMr. James Horsfall.\nThe Rev. Samuel Horsley, LL.D.\nJohn Howard, Esq.\nMr. Samuel Howard.\nWilliam Augustus Howard,\nM. D.\nCharles Grave Hudson, Esq.\nMr. William Hudson.\nSir Abraham Hume, Bart.\nAlexander Hunter, M.D.\nJohn Hunter, Esq. Surgeon extra to his Majesty.\nWilliam Hunter, M. D. F. A. S.\nPhysician extra to her Majesty.\nFrancis E. of Huntingdon,\nF. A. S.\nMr. Philip Hurlock.\nCharles Hutton, LL.D. Master of Geometry at the Royal Military Academy at Woolwich.\nThe Rev. Cyril Jackson, D.D.\nHumphrey Jackson, Esq.\nWilliam James, Esq. F.A.S.\nSir William James, Bart.\nJohn Ibbetson, Esq. F.A.S.\nJohn Jebb, M.D.\nSir\nHOME MEMBERS.\n\nSir Richard Jebb, Bart.: F. A. S.\nPhysician extra to his Majesty.\n\nJohn Jennings, Esq.\n\nJohn Ingen-Housz, Physician to the Emperor, Soc. Rotterd. Soc.\n\nRichard Paul Jodrell, Esq.\n\nWilliam Jones, Esq. F.A.S.\n\nThe Rev. William Jones, M. A.\n\nJoshua Iremonger, Esq.\n\nMr. John Obadiah Justamond.\n\nThe Rev. Richard Kaye, LL.D.\nF. A. S. Trust. Br. Mus.\n\nThe Rev. Benj. Kennicott, D.D.\n[Acad. El. Palat. R. Soc. Gott. Soc.]\n\nRobert Ker, Esq.\n\nEdward King, Esq. F. A. S.\n[Soc. Antiqu. Cassell. Soc.]\n\nThe Rev. John Glen King, D.D.\nF. A. S.\n\nThe Rev. Andrew Kippis, D.D.\nF. A. S.\n\nRichard Kirwan, Esq.\n\nMr. John Landen.\n\nMr. Timothy Lane.\n\nJac. Frederick Lantsheer, Esq.\n\nThomas Lashley, M. D.\n\nMr. John Latham.\n\nThe Rev. Charles Peter Layard, M. A.\n\nDaniel Peter Layard, M. D.\nF. A. S. Soc. R. Gott. Soc.\n\nFrancis Lord Le Despencer,\nF. A. S.\n\nArthur Lee, M. D.\n\nThomas Duke of Leeds, K.G.\n\nMr. Charles L'Epinaffe.\n\nJohn Letch, M.D. F.A.S.\n\nJohn Coakley Lettsom, M.D.\nF. A. S.\n\nSir Ashton Lever, Knt. F. A. S.\n\nJames Lind, M. D.\n\nPeter Livius, Esq.\n\nGeorge Lloyd, Esq.\n\nJohn Lloyd, Esq. F.A.S.\n\nThe Rev. John Lockman, D.D.\n\nRobert Lowth, L. Bishop of London, Trust. Br. Mus.\nSoc. R. Gott. Soc.\n\nThe Rev. Michael Lort, D. D.\nF. A. S. [Soc. Antiqu. Cassell. Soc.]\n\nJohn Gideon Loten, Esq. F.A.S.\n\nJohn Earl of Loudoun.\n\nRichard Warburton Lytton, Esq.\n\nMr. Murdoch Mackenzie.\n\nSir Herbert Mackworth, Bart.\nF. A. S.\n\nMr. John Hyacinth de Magellan,\n[Ac. Imp. Petrop. et R. Matr. Soc.]\n\nCharles Viscount Mahon.\nHOME MEMBERS.\n\nThe Rev. John James Majendie, D.D.\nJohn Malliet, Esq.\nThe Rev. Owen Manning, B.D., F.A.S.\n\nHugh Earl of Marchmont.\nHon. Charles Marsham, M.P.\nRobert Marsham, Esq.\nFrancis Maeres, Esq., Curator Baron of the Exchequer.\nMr. John Maud.\nIsrael Mauduit, Esq.\nLieut. General Robert Melvill, F.A.S.\nOwen Putland Meyrick, Esq.\nThe Rev. John Michell, B.D.\nRichard Michell, Esq., F.A.S.\nThe Rev. Jeremiah Milles, D.D., Pr. A.S., Dean of Exeter, Soc. Antiqu. Cassell. Soc.\nJeremiah Milles, Esq., F.A.S.\nJohn Mills, Esq., Acad. Elect. Palat. Soc.\nFrancis Milman, M.D.\nThe Rev. Isaac Milner, A.M.\nDaniel Minet, Esq., F.A.S.\nWilliam Mitford, Esq., F.A.S.\n\nJohn Earl of Moira.\nHon. Coote Molesworth, M.D.\nDonald Monro, M.D.\nGeorge Duke of Montagu, K.G., Master of the Horse to his Majesty.\n\nThe Rev. Thomas Morell, D.D., Sec. A.S., Soc. Antiqu. Cassell. Soc.\nJohn Morgan, M.D.\nMichael Morris, M.D.\nLeonard Morse, Esq.\nCharles Morton, M.D., F.A.S.\n[Ac. Imp. Nat. Cur. & Pet. Soc.]\nMr. Peter Moulton.\nMr. John Mudge.\nHon. Col. James Murray, M.P.\nRobert Mylne, Esq.\nMr. Edward Nairne.\nSir James Napier, Knt. F.A.S.\nJoseph Nash, Esq.\nMr. Turberville Needham, F.A.S.\n[Direct. Acad. Imp. et R. Bruxell.]\n\nHenry Duke of Newcastle.\nJohn Nicoll, Esq.\nBaron Gustavus Adam Nolcken, Commander of the Order of Polar Star, and Envoy from the King of Sweden.\nJohn Mervin Nooth, M.D.\nCharles Duke of Norfolk, F.A.S.\nHugh Duke of Northumberland, K.G., Tryst. Br. Mus.\nRt. Hon. Sir Fletcher Norton, Knt. M.P.F.A.S.\n\nSir Lucius O'Brien, Bart. F.A.S.\nHon. Edward Onslow, M.P.\nHOME MEMBERS.\n\nJohn Ord, Esq. M.P.\nJohn Osborne, Esq.\nThe Rev. Henry Owen, M.D.\n\nHen. Visc. Palmerston, M.P.\nLord of the Treasury, F.A.S.\nPascal de Paoli, Esq.\nJohn Paradife, Esq.\nJohn Parker, Esq.\nThe Rev. William Parker, D.D.\nHenry Partridge, Esq.\nSir Ralph Payne, K.B.\nJohn Peachey, Esq. F.A.S. M.P.\nCharles Anderson Pelham, Esq. M.P.\nThomas Pennant, Esq. Soc. R. Up. Soc.\nThe Rev. Richard Penneck, M.A.\nHenry Penton, Esq. M.P. Lord of the Admiralty.\nLucas Pepys, M.D. F.A.S.\nPhysician extra to his Majesty.\nThomas Percival, M.D. F.A.S.\n[R. Soc. Med. Par. Soc.]\nWilliam Philip Perrin, Esq. F.A.S.\nRobert Edw. Lord Petre, F.A.S.\nJames Petty, Esq.\nGranado Pigott, Esq.\nNathaniel Pigott, Esq. Aead. Imp.\nBruxell. & Cadom. Socius, & Paris. Corresp.\nWilliam Pitcairn, M.D. Pref. R. Coll. Phys. Trust. Br. Mus.\n\nJohn Pitt, Esq.\nOther Earl of Plymouth.\nBaron Jof. Lewis Podmaniczky.\nMr. Joseph Poli.\nAllan Pollok, M.D.\nAlexander Lord Polwarth.\nEdward Poore, Esq.\nW. Hen. Duke of Portland, F.A.S. Trust. Br. Mus.\nMr. Percivall Pott.\nThomas Pownall, Esq. F.A.S.\nJacob Preston, Esq. F.A.S.\nThe Rev. William Preston, M.A.\nThe Rev. Richard Price, D.D.\nThe Rev. Jof. Priestley, LL.D.\nSamuel Prime, Esq.\nSir John Pringle, Bart. F.A.S.\nPhysician extra to his Majesty and Physician to her Majesty,\nAc. R. Sc. Par. & Petrop. Soc.\nRichard Pulteney, M.D.\nThe Rev. Mr. Henry Putman.\n\nMajor Gen. Charles Rainsford.\nSir Walter Rawlinson, Knt.\nF.A.S. M.P.\nSamuel Reynardson, Esq. F.A.S.\nSir Joshua Reynolds, Knt. Pr. Roy. Acad.\nThe Rev. Robert Richardson, D.D. F.A.S.\n\nB Charles\nHOME MEMBERS.\n\nCharles Duke of Richmond.\nMr. David Riz.\nMatthew Robinson, Esq.\nCha. Marquis of Rockingham,\nK. G. F. A. S.\nJohn Roebuck, M. D.\nCharles Rogers, Esq. F. A. S.\nJohn Rogerson, M. D. Physician\nto the Empress of Russia.\nRobert Lord Romney.\nColonel William Roy, F. A. S.\nDeputy Quartermaster General.\nFrancis Russel, Esq. F. A. S.\nPatrick Russel, M. D.\nWilliam Russel, Esq.\nThomas Ryves, Esq.\n\nCount Jerom de Salis.\nThe Rev. Henry Jerom de Salis,\nD. D. F. A. S.\nJoseph Salvador, Esq. F. A. S.\nSir George Savile, Bart.\nRichard Saunders, M. D.\nKenneth Earl of Seaforth,\nF. A. S.\nWilliam Seward, Esq. F. A. S.\nLancelot Shadwell, Esq.\nMr. William Sharp.\nThe Rev. Anthony Shepherd,\nD. D. Prof. Astron. Cambr.\nMolyneux Lord Shuldham,\nM.P. Vice Admiral of the Red.\n\nRobert Shuttleworth, Esq.\nSir John Silvester, Knt. M. D.\nJohn Silvester, Esq.\nSamuel Foart Simmons, M. D.\nMr. John Smeaton.\nAdam Smith, LL. D.\nSir John Smith, Bart. F. A. S.\nJames Carmichael Smith, M. D.\nDaniel Charles Solander, LL. D.\nAcad. R. Holm. & Madrit. Soc. R. Lund.\nGotbob. Gedan. & Nat. Scrutat. Berolin.\nSocius, Acad. R. Parif. Corresp.\n\nPhilip Earl Stanhope.\nEdward Stanley, Esq. F. A. S.\nThe Rev. Henry Stebbing, D.D.\nF. A. S.\nPhilip Stephens, Esq. M. P. F. A. S.\nSecretary to the Admiralty.\nMr. Robert Sterling.\nThe Rev. Matthew Stewart,\nD. D. Prof. Math. Edinb.\nJohn Strange, Esq. his Majesty's\nResident at Venice, F. A. S.\nInflit. Bonon. Soc.\nJames Stuart, Esq. F. A. S.\nCharles Earl of Surry, F. A. S.\nThe Rev. Philip Van Swinden,\nM. A.\nThe Rev. Sidney Swinney, D.D.\nF. A. S.\nSir John Taylor, Bart. F. A. S.\nMichael Teighe, M. D.\nSir\nHOME MEMBERS.\n\nSir Noah Thomas, Knt. Physician to his Majesty.\nBenjamin Thompson, Esq.\nJohn Earl of Tilney.\nJohn Topham, Esq. F.A.S.\nMarmaduke Tunstal, Esq. F.A.S.\nJohn Turton, M.D. Physician to her Majesty's Household.\nRichard Twiss, Esq.\nThomas Tyrwhitt, Esq.\n\nMr. Thomas Vage.\nRodolph de Valltravers, Esq. F.A.S. Soc. R. Upf. Soc.\nRalph Earl Verney, M.P.\nJohn Earl of Upper Ossory, M.P.\nJohn Upton, Esq. F.A.S.\nMr. William Wales, Master of the Mathematical School in Christ's Hospital.\nMr. George Walker.\nJames Walker, Esq.\nHon. Horatio Walpole.\nJohn Walsh, Esq. F.A.S.\nThomas Lord Walsingham.\nEdward Waring, M.D. Prof. of Math. Camb.\nRichard Hill Waring, Esq.\nMr. Joseph Warner.\n\nGeorge Earl of Warwick, F.A.S.\nMr. Henry Watson.\nJames Watson, LL.D.\nJonathan Watson, Esq.\nThe Rev. Richard Watson, D.D. Regius Prof. Div. Camb.\nWilliam Watson, M.D. Trust. Br. Mus.\nWilliam Watson, Jun. M.D.\nSir John Webb, Bart. F.A.S.\nWilliam Webber, Esq.\nGeorge Samuel Wegg, Esq.\nHon. Thomas Francis Wenman.\nRobert Weston, Esq. F.A.S.\nMr. Charles White.\nThomas White, Esq.\nMr. John Whitehurst.\nThomas Wilbraham, M.D.\nJohn Wilkes, Esq. M.P. Chamberlain of the City of London.\nIsrael Wilkes, Esq.\nJohn Wilkinson, M.D. S.R. Gott.Corr.\nRalph Willet, Esq. F.A.S.\nMr. Dionysius Williams.\nSir Edward Wilmot, Bt. Physician to his Majesty.\nJohn Wilmot, Esq.\nMr. Benjamin Wilson, Imp. Ac. Petr. Soc. R. Upf. & Inst. Bonon. Soc.\n\nB 2 William\nHOME MEMBERS.\n\nWilliam Windham, Esq.\nEdward Earl Winterston.\nJohn Winthrop, Esq.\nSir Clifton Wintringham, Bt.\nPhysician to his Majesty.\nMr. George Witchell, Master of the Royal Academy at Portsmouth.\nNath. Matthew Wolf, M. D.\n[Soc. Phys. Gedan. Soc.]\nThe Rev. Francis Wollaaston, LL. B.\nThe Rev. George Wollaaston, D. D.\nThomas Wood, Esq.\nRt. Hon. Sir Rich. Worfley, Bt.\nF. A. S. M. P.\nMr. Peter Woulfe.\nDaniel Wray, Esq. F. A. S.\nTrust. Br. Mus.\nRichard Wright, M. D.\nWilliam Wright, M. D.\nMr. John Wyatt.\nThe Rev. William Wyatt, M. A.\nHon. John Yorke, M. P.\nArthur Young, Esq.\nSir William Young, Bart.\n\nFOREIGN MEMBERS.\n\nD. Michael Adanson, Reg. Sc. Acad. Par. Soc.\nD. Joh. Baptista Albertini, Princeps Sanseverinus.\nD. Joh. d'Alembert, Reg. Sc. Acad. Paris. & Berolin. Soc.\nD. Joh. Nic. Seb. Allamand, Phil. Prof. Lugduno-Batav.\nD. Carolus Allioni, M. D. Bot. Prof. Taurinens.\nD. Petrus Ascanius, M. D. Hafniae.\nD. —— Barthelemy, Reg. Inscr. & Hum. Lit. Ac. Par. Soc.\nD. Lud. de Beaufort, I. U. D. Mosa-Traject.\nD. Joh. Baptist. Jac. Elie de Beaumont, in Sen. Par. Cauf. Pat.\nD. Joh. Baptist. Beccaria, Phil. Exp. Prof. Reg. Taurinens.\nD. Petrus Jonas Bergius, M. D. Hist. Nat. Prof. Stockholm.\nD. Thorbern Bergman, Chemiae Prof. Upsal.\nD. M. Joh. Baptist. Bernard, M. D. Med. Prof. Duacens.\nD. Daniel Bernoulli, R. Sc. A. Par. Soc. Pr. Astr. Basil.\n\nD. Ferd.\nFOREIGN MEMBERS.\n\nFerd. Berthoud, Neocom. Helv.\nJof. Steph. Bertier, Parisiensis.\nCarolus Bonnet, Genevensis.\nIgnatius S. R. I. Eques a Born,\nRoger Boscowich, Astron. Prof. Mediol.\nJoh. Maur. Comes Bruhl, Orat. Elec. Sax. ad Brit. Reg.\nJof. Laurent. Bruni, M. D. Anat. Pr. Taur.\nG. L. le Clerc Comes de Buffon, R.S. A. Par. S. & Hort. R. Pr.\nMar. Ant. Leop. Caldani, Anat. Prof. Patav.\nPetrus Camper, M. D. Med. Pr. Gron.\nMarchio Domin. Caraccioli.\nJoh. Baptist. Carburi, Prof. Med. Reg. Taurin.\nCaesar Franc. Caffini de Thury, R. S. A. Parif. & Berol. Soc.\nJoh. Castiglione, Ac. R. Sc. Berol. Soc.\nR. Caumont, M.D. Paris.\nPaul Celestia, Nobil. Genoensis.\nJof. Bern. Marchio de Chabert, R. S. A. Parif. Soc.\nJoh. Bapt. de la Chapelle, Parisiensis.\nLud. Mar. Jos. d'Albert d'Ailly, Dux de Chaulnes.\nJoh. Franc. Cigna, M. D. Taurinensis.\nFranc. Gabr. Coyer, Parif.\nLud. Joh. Mar. Daubenton, M. D. A. R. S. Par. & Ber. S.\nPetrus Davila, Hispanus.\nA. Georgius Eckhard, Hagae Com.\nLeonardus Euler, Acad. Imp. Petrop. Soc.\nJoh. Baptist. Faget, Parisiensis.\nJoh. Bapt. de Feronce, Conf. Aul. Brunf.\nBened. Ferrner, Ord. de Stella Pol. Eques, R. A. Sc. Stockh. Soc.\nSamuel Formey, Reg. Sc. Ac. Ber. Sec. perp.\nJoh. Paul Grand Jean de Fouchy, R. S. Ac. Par. perp. hon.\n\nP. Paul.\nFOREIGN MEMBERS.\n\nP. Paul. Frisi, Prof. Math. Mediol.\nD. Joseph. Gaertner, M. D. Wurtemberg.\nD. Car. Hyacinth. Ant. Dux de Gallean, Princ. S. R. I.\nD. Joh. Petr. Grosley, A. R. Insc. Par. Soc.\nD. Joh. Paul. de Gua de Malves, Reg. Sc. Acad. Paris. Soc.\nD. Octavian. de Guasco, Abbas; Nob. Pedemont.\nD. Joseph. de Guignes, Int. Lin. Orient. Reg. Chrift.\nD. H. Lud. du Hamel du Monceau, R. S. A. Par. S.\nD. Sam. Christian. Hollmannus, Philosoph. Prof. Gotting.\nD. Martin. Hubner, Conf. R. Daniae, &c.\nD. Franc. Jacquier, Ord. Min. Rom. Math. Prof.\nD. Teffer Samuel Kuckhan, Jamaicensis.\nD. Johannes Dux de La Foes, Lusitanus.\nD. Jeron. de la Lande, R. Sc. Ac. Par. & Ber. Soc.\nD. Joh. Philip. de Limbourg, M. D. Spadensis.\nD. Ferdinandus S. R. I. Princeps Lobkowitz.\nD. Johannes Andreas de Luc, Genevensis.\nD. Petr. de Lyonet, J. U. D. Hagae Com.\nD. Xaverius Manetti, Prof. Med. & Bot. & Ac. Flor. Sec.\nD. Martin. de Mello é Castro, Reg. Luf. à Sec. & Conf.\nD. Car. Messier, Reg. Acad. Sc. Paris. Soc.\nD. Frid. Christ. Meuschen, Ac. Imp. Nat. Cur. Soc. Hagae Com.\nD. Adam. Gottl. Moltke, Comes de Breg. Conf. Int. R. Dan.\nD. Gulielm. le Monnier, M. D. Reg. Ac. Sc. Par. Soc.\nD. Petr. Carolus le Monnier, Reg. Sc. Ac. Par. Soc.\nD. —— Secondat de Montesquieu, Burdegalensis.\nD. Franc. Clement. Morand, M. D. Reg. Sc. Ac. Par. Soc.\nD. Laurent. Morosini, Nob. Venet.\nD. Ger. Fred. Müller, Historiographus Imp. Russ.\nD. Ludov. Jul. Dux Nivernensis, Par Galliae, &c.\n\nD. Casimir\nFOREIGN MEMBERS.\n\nD. Casimir Gomez Ortega, M.D. Prof. Reg. Botan. Madrit.\nD. Camillus Paderni, Romanus.\nD. Petr. Simon Pallas, M.D. Hist. Nat. Prof. Petrop.\nD. Martin Poczobut, Astron. Reg. Poloniae.\nD. Petrus Poissonier, Acad. Imp. Petrop. Soc.\nD. Seb. Jof. Marchio de Pombal, Lusitanus.\nD. Joseph Raulin, M.D. Parisiens.\nD. —— Raynal, Parisiens.\nD. Sigif. Comes de Redern, Praef. Acad. Reg. Berolin.\nPrinceps Abondio Rezzonico, Romanus.\nD. Fulcus Marchio Rinuccinus, Nob. Florentinus.\nD. Johannes le Roy, Ac. R. Sc. Par. Soc.\nD. David Van Royen, Bot. Prof. Lugd. Bat.\nD. Georg. Ludov. le Sage, Genevensis.\nD. Jof. Fr. Wicardel de Fleury, Comes de Saluce, Pedem.\nD. Jacob. Christ. Schaeffer, S.T.D. Ratisbonensis.\nD. Joh. de Schuvaloff, Cubicular, suprêm. Imperatr. Russ.\nD. Achill. Petr. Dio. du Sejour, Acad. Reg. Par. Soc.\nD. Lazarus Spallanzani, Hist. Nat. Prof. Paviae.\nD. Jacobus de Stehelin, Ac. Imp. Petrop. Soc.\nD. Simon Stratico, Episcopus in Dalmatia.\nD. Joh. Joseph Sue, M.A. Parisiensis.\nD. S. A. D. —— Tiffot, M.D. Lausannensis.\nD. Jof. Toaldo, Profess. Astron. Patav.\nD. Joseph Ignat. de Torres, M.D. Hispan.\nD. Abrah. Trembley, Genevensis.\nD. Ludov. Comes de Treffan, Reg. Sc. Acad. Par. Soc.\nD. T. Tronchin, M.D. Reg. Sc. Acad. Par. Soc.\nD. Marsilius Ventury, Nob. Par. Reg. Hisf. à Cons.\nD. Petrus de Vigny, Reg. Ac. Arch. Par. Soc.\nD. Danse de Villoison, A.R. Insc. Par. Soc.\n\nD. Anton.\nFOREIGN MEMBERS.\n\nAnton. de Ulloa, Praefectus Clavis Reg. Hispan.\nCarolus Walmsley.\nPetr. Wargentin, Ord. de Stella Pol. Eques, Ac. R. Sc. Stockh. Sec. perp.\nJoh. Hen. Georg. S. R. I. Comes de Werthern.\nJoh. Hen. Winkler, Lipsiensis.\nEustatius Zanotti, Astronom. Bonon.\nCONTENTS\n\nOF\n\nVOL. LXXI. PART II.\n\nXV. NEW Experiments upon Gun-powder, with occasional Observations and practical Inferences; to which are added, an Account of a new Method of determining the Velocities of all Kinds of Military Projectiles, and the Description of a very accurate Eprouvette for Gun-powder. By Benjamin Thompson, Esq., F. R. S. Page 230\n\nXVI. Account of a luminous Appearance in the Heavens. By Mr. Tiberius Cavallo, F. R. S. in a Letter to Sir Joseph Banks, Bart. P. R. S. p. 329\n\nXVII. Account of an Earthquake at Hafodunos near Denbigh. By John Lloyd, Esq. F. R. S. in a Letter to Sir Joseph Banks, Bart. P. R. S. p. 331\n\nXVIII. On the Heat of the Water in the Gulf-stream. By Charles Blagden, M. D. Physician to the Army, F. R. S. p. 334\n\nXIX. Account of the Appearance of the Soil at opening a Well at Hanby in Lincolnshire. In a Letter from Sir Henry C. Englefield, Bart. F. R. and A. S. to Sir Joseph Banks, Bart. P. R. S. p. 345\n\nXX. Astronomical Observations made by Nathaniel Pigott, Esq. F. R. S. Foreign Member of the Academies of Brussels and Caen, and Correspondent of the Academy of Sciences at Paris. Communicated by Sir Henry C. Englefield, Bart. F. R. and A. S. p. 347\n\nXXI. Abstract of a Register of the Barometer, Thermometer, and Rain, at Lyndon, in Rutland, 1780. By Thomas Barker, Esq. p. 347\nXXII. Some Calculations of the Number of Accidents or Deaths which happen in consequence of Parturition; and of the Proportion of Male to Female Children, as well as of Twins, monstrous Productions, and Children that are dead-born; taken from the Midwifery Reports of the Westminster General Dispensary: with an Attempt to ascertain the Chance of Life at different Periods, from Infancy to Twenty-six Years of Age; and likewise the Proportion of Natives to the rest of the Inhabitants of London. In a Letter from Robert Bland, M.D. Physician-Man-Midwife to the Westminster General Dispensary, to Samuel Foart Simmons, M.D. F.R.S. p. 355\n\nXXIII. Account of a Child who had the Small-pox in the Womb. In a Letter from William Wright, M.D. F.R.S. to John Hunter, Esq. F.R.S. p. 372\n\nXXIV. Natural History of the Insect which produces the Gum Laccá. By Mr. James Kerr, of Patna; communicated by Sir Joseph Banks, P.R.S. p. 374\n\nXXV. Account of a Phenomenon observed upon the Island of Sumatra. By William Marsden, Esq.; communicated by Sir Joseph Banks, P.R.S. p. 383\n\nXXVI. Farther Experiments on Cold, made at the Macfarlane Observatory belonging to Glasgow College. In a Letter from Patrick Wilton, M.A. to the Rev. Nevil Maskelyne, D.D. F.R.S. and Astronomer Royal. p. 386\n\nXXVII. A general Theory for the Mensuration of the Angle subtended by Two Objects, of which One is observed by Rays after Two Reflections from plane Surfaces, and the other by Rays coming directly to the Spectator's Eye. By George Atwood, M.A. F.R.S. p. 395\n\nXXVIII. An Account of the Ophidium barbatum LINNEI. By P.M. Augustus Broussonet, M.D.; communicated by Sir Joseph Banks, Bart. P.R.S. p. 436\n\nXXIX. A further Account of the Usefulness of washing the Stems of Trees. By Mr. Robert Marsham, of Stratton, F.R.S. p. 449\n\nXXX. Hints relating to the Use which may be made of the Tables of natural and logarithmic Sines, Tangents, &c. in the numerical Resolution of affected Equations. By William Wales,\nWales, F. R. S. and Master of the Royal Mathematical School in Christ's Hospital.\n\nXXXI. Experiments on the Power that Animals, when placed in certain Circumstances, possess of producing Cold. By Adair Crawford, M. D.; communicated by Sir Joseph Banks, Bart. P. R. S.\n\nXXXII. Account of a Comet. By Mr. Herschel, F. R. S.; communicated by Dr. Watson, Jun. of Bath, F. R. S. p. 494\n\nXXXIII. A Letter from Mr. Joseph Willard to the Rev. Dr. Maskelyne, Astronomer Royal, concerning the Longitude of Cambridge in New England.\n\nXXXIV. An Account of some Thermometrical Experiments; containing, I. Experiments relating to the Cold produced by the Evaporation of various Fluids, with a Method of purifying Ether. II. Experiments relating to the Expansion of Mercury. III. Description of a Thermometrical Barometer. By Tiberius Cavallo, F. R. S. who was nominated by the President and Council to prosecute Discoveries in Natural History, pursuant to the Will of the late Henry Baker, Esq. F. R. S. p. 509\nPRESENTS\nMADE TO THE\nROYAL SOCIETY\nFrom November 1780 to July 1781;\nWITH\nThe NAMES of the DONORS.\n\nDonors. Presents.\n\n1780.\nNov. 9. Academy of Sciences at Paris. Memoires de l'Academie Royale des Sciences, pour 1773, 1774, 1775, 1776, 4°\n\nRecueil des Machines approuvées par l'Academie, tom. 7. 4°\n\nSociety of Sciences at Gottingen. Commentationes Societatis Regiae Scientiarum Gottingensis, vol. 2. 4°\n\nArthur Young, Esq. A Tour in Ireland, in the Years 1776, 1777, 1778, 2 vols. 8°\n\nMr. Henry Clarke. A Dissertation on the Summation of infinite converging Series, with Algebraic Divisors, translated from the Latin of A. M. Lorgna, with Notes and Observations. 4°\n\nThe Rationale of Circulating Numbers. 8°\n\nPractical Perspective, vol. I. 8°\n\nDr. Forster. Chemical Observations and Experiments on Air and Fire. 8°\n\nJohn Bernoulli. Supplement au Recueil pour les Astronomes. 8°\n\nMr. Magellan. Genera Plantarum vocabulis Characteristicis definita. 4°\n\nBoard of Longitude. The Nautical Almanac for the Year 1785. 8°\n\nNat. Gott. Lecke. Anfangsgründe der Naturgeschichte, erster theil. 8°\nDonors.\n\n1780\nN. v. g. Nat. Gott. Leke.\n23. Mr. Nichois.\n\nEdward Johnston, M. D.\nDec. 7. Society of Sciences at Upsal.\n\nRoyal Academy of Sciences at Stockholm.\nProf. Zimmerman.\n\nMr. Giral.\n21. Mr. Phil. Hurlock.\n\nMr. Le Baron de Marivetz.\n\nMr. Nicolls.\n\n1781\nJan. 11. Mr. Hope.\n\nMr. Gough.\n25. Mr. W. Wales.\n\nFeb. 8. Andrew Duncan, M. D.\nDr. Du-Pui.\n\nDr. Caldani.\n22. Palatine Academy.\n\nMar. 1. Mr. John Landen.\n15. Edward Waring, M. D.\nMar. 22. Thomas Pennant, Esq.\nApr. 26. Seguin Jackson, M. D.\n\nPresents.\n\nAccount of a Species of Tenia that breeds in the Head of Sheep. 8°\nBibliotheca Topographica Britannica, No I.\n\nNumismatum Romanorum Imperatorum et Imperaticum Series et Valor, a Rogero Gale. 4°\n\nDissertatio Medica de Febre puerperali. 4°\nNova Acta Regiae Societatis Scientiarum Upsaliensis, tom. 3. 4°\n\nTransactions of the Royal Academy of Sciences of Stockholm for 1779. 4°\nTraité de l'Élasticité de l'Eau et d'autres Fluides. 8°\n\nMemoire sur les Constructions des Ponts. 4°\nCommentarii de Rebus in Scientia Naturali et Medicina Geftis, 21 vols. Lipsiae. 8°\n\nPhysique du Monde, par Mons. le Baron de Marivetz et Mr. Gouffier. 4°\n\nFranci Nicolphi vita, scriptore Toma Lawrence. 4°\n\nThe Second Part of the 16th vol. of the Transactions of the Academy of Sciences of Haerlem. 8°\n\nTravels through Spain, by John Talbot Dillon, Knight and Baron of the Sacred Roman Empire. 4°\n\nEnquiry into the present State of Population in England and Wales. 8°\n\nHeads of Lectures on the Theory and Practice of Physic. 8°\n\nDissertatio Medica de Homine dextro et sinistro. 8°\n\nInstitutiones Physiologice. 8°\n\nMonitum ad Observatores Societatis Meteorologice Palatinae. 4°\n\nObservations on converging Series. 8°\n\nProprietates Algebraicarum Curvarum. 4°\n\nHistory of Quadrupeds, 2 vols. 4°\n\nA Treatise on Sympathy. 8°\n\nDonors\nDonors.\n\nMay 10. Thomas Pennant, Esq.\n24. Mr. Gualandris.\nMr. Thorrowgood.\nMr. Peter Dollond.\n\n31. Board of Longitude.\n\nRev. John Howlett.\nMr. Frederick Mallet.\n\nJune 14. Richard Paul Jodrell, Esq.\nSir Richard Worsley, Bart.\nDr. Priestley.\nDr. Pulteney.\nMr. Thomas Henry.\n\n28. Mr. Heocfar.\nAlexander Dalrymple, Esq.\nDr. Simmons.\n\nJuly 5. John Elliot, M.D.\n\nPresents.\n\nGenera of Birds. 4°\nLettere Odeporiche. 8°\nA Description of a new Watch Key. 8°\nAn engraven Portrait of the late Mr. Dollond, F. R. S.\n\nThe Nautical Almanac for 1786. 8°\nTables requisite to be used with the Nautical Ephemeris for finding the Latitude and Longitude. 8°\nA Sexagesimal table, exhibiting at sight the Result of any Proportion where the Terms do not exceed Sixty Minutes, with Precepts and Examples, by Michael Taylor. 4°\nAn Examination of Dr. Price's Essay on the Population of England and Wales. 8°\nA mathematical Description of the Earth, and Eight Mathematical Theses.\nNova Analysis Æquationum Secundi, tertii et quarti gradus. 4°\nIllustrations on the Ion and Bacchæ of Euripides, 2 vol. 8°\nThe History of the Isle of Wight. 4°\nExperiments and Observations relating to various Branches of Natural Philosophy. 4°\nA general View of the Writings of Linnaeus. 8°\nAccount of a method of preserving Water at Sea from Putrefaction, and of restoring to the Water its original Pleasantness and Purity.\nA specimen of Sal sedativum Naturale Etruscum.\nTwo Maps of the East India Company's Lands on the Coast of Coromandel, together with an Explanation. 4°\nThe Elements of Anatomy, and the Animal Economy, 2d edit. 8°\nA complete Collection of the Medical and Philosophical Works of John Fothergill, M.D. 8°\nDIPLOMATA\n\nET\n\nSTATUTA\n\nREGALIS SOCIETATIS LONDINI,\n\nPro Scientiâ Naturali Promovendâ:\n\nJussu Præsidis et Concilii edita.\n\nMDCCLXXVI.\nCONTENTS.\n\nDIPLOMATA.\n\nPRIMA. — — p. 1\nSecunda. — — p. 19\nTertia. — — p. 40\nLicence to purchase in Mortmain. — — p. 57\n\nSTATUTES of the ROYAL SOCIETY.\n\nPreface. p. 1\n\nCHAP. I.\nOf the Election and Admission of Fellows. p. 9\n\nCHAP. II.\nOf the Obligation to be subscribed. p. 13\n\nCHAP. III.\nOf the Payments by the Fellows to the Society. p. 14\n\nCHAP. IV.\nOf the Death or Recess of any Fellow. p. 16\n\nCHAP. V.\nOf the Causes and Form of Ejection. p. 17\nCONTENTS.\n\nCHAP. VI.\nOf the Election of the Council and Officers. p. 18\n\nCHAP. VII.\nOf the President. p. 24\n\nCHAP. VIII.\nOf the Treasurer and his Accompts. p. 25\n\nCHAP. IX.\nOf the Secretaries. p. 28\n\nCHAP. X.\nOf the Clerk, Librarian, Keeper of the Repository, and Housekeeper. p. 30\n\nCHAP. XI.\nOf the ordinary Meetings of the Society. p. 36\n\nCHAP. XII.\nOf the selecting of Papers laid before the Society, in order for Publication. p. 38\n\nCHAP. XIII.\nOf the Manner of Publication of the Papers laid before the Society. p. 41\n\nCHAP. XIV.\nOf the Books and Papers of the Society. p. 44\n\nCHAP. XV.\nOf the Common Seal and Deeds. p. 47\n\nCHAP. XVI.\nOf the making and repealing of Laws. p. 48\nDIPLOMATA\n\nPRÆSIDI, CONSILIO, et SODALIBUS,\n\nREGALIS SOCIETATIS LONDINI,\n\nA REGIBUS\n\nCarolo Secundo et Georgio Primo,\n\nData et conceffa.\n\na 3", "source": "olmocr", "added": "2026-01-12", "created": "2026-01-12", "metadata": { "Source-File": "/home/jic823/projects/def-jic823/royalsociety/pdfs/106506.pdf", "olmocr-version": "0.3.4", "pdf-total-pages": 35, "total-input-tokens": 54696, "total-output-tokens": 13655, "total-fallback-pages": 0 }, "attributes": { "pdf_page_numbers": [ [ 0, 0, 1 ], [ 0, 194, 2 ], [ 194, 2014, 3 ], [ 2014, 3148, 4 ], [ 3148, 4164, 5 ], [ 4164, 5701, 6 ], [ 5701, 6846, 7 ], [ 6846, 8100, 8 ], [ 8100, 9530, 9 ], [ 9530, 10951, 10 ], [ 10951, 12618, 11 ], [ 12618, 14021, 12 ], [ 14021, 15531, 13 ], [ 15531, 17086, 14 ], [ 17086, 18645, 15 ], [ 18645, 20263, 16 ], [ 20263, 21680, 17 ], [ 21680, 23043, 18 ], [ 23043, 24313, 19 ], [ 24313, 25783, 20 ], [ 25783, 27190, 21 ], [ 27190, 27460, 22 ], [ 27460, 27460, 23 ], [ 27460, 27460, 24 ], [ 27460, 28793, 25 ], [ 28793, 30772, 26 ], [ 30772, 31769, 27 ], [ 31769, 32854, 28 ], [ 32854, 34667, 29 ], [ 34667, 36345, 30 ], [ 36345, 36345, 31 ], [ 36345, 36479, 32 ], [ 36479, 36927, 33 ], [ 36927, 37611, 34 ], [ 37611, 37752, 35 ] ], "primary_language": [ "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "None", "la", "en", "en", "la" ], "is_rotation_valid": [ true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true ], "rotation_correction": [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], "is_table": [ false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false ], "is_diagram": [ false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false ] }, "jstor_metadata": { "identifier": "jstor-106506", "title": "Front Matter", "authors": null, "year": 1781, "volume": "71", "journal": "Philosophical Transactions of the Royal Society of London", "page_count": 35, "jstor_url": "https://www.jstor.org/stable/106506" } }