{ "id": "70b0db01aa2e3774a7cecfe3cea14be3e08b93cf", "text": "The 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 advisable 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 judgement of their respective authors.\n\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,\nupon any subject, either of Nature or Art, that comes before them. And therefore\nthe thanks, which are frequently proposed from the Chair, to be given to the authors\nof such papers as are read at their accustomed meetings, or to the persons through\nwhose hands they received them, are to be considered in no other light than as a\nmatter of civility, in return for the respect shown to the Society by those communi-\ncations. The like also is to be said with regard to the several projects, inventions,\nand curiosities of various kinds, which are often exhibited to the Society; the authors\nwhereof, or those who exhibit them, frequently take the liberty to report and even to\ncertify in the public newspapers, that they have met with the highest applause and\napprobation. And therefore it is hoped that no regard will hereafter be paid to such\nreports and public notices; which in some instances have been too lightly credited,\nto the dishonour of the Society.\n\nThe Meteorological Journal hitherto kept by the Assistant Secretary at the Apart-\nments of the Royal Society, by order of the President and Council, and published in\nthe Philosophical Transactions, has been discontinued. The Government, on the\nrecommendation of the President and Council, has established at the Royal Obser-\nvatory at Greenwich, under the superintendence of the Astronomer Royal, a Magnet-\nical and Meteorological Observatory, where observations are made on an extended\nscale, which are regularly published. These, which correspond with the grand\nscheme of observations now carrying out in different parts of the globe, supersede\nthe necessity of a continuance of the observations made at the Apartments of the\nRoyal Society, which could not be rendered so perfect as was desirable, on account\nof the imperfections of the locality and the multiplied duties of the observer.\nA List of Public Institutions and Individuals, entitled to receive a copy of the Philosophical Transactions of each year, on making application for the same directly or through their respective agents, within five years of the date of publication.\n\nIn the British Dominions.\nThe Queen's Library.\nThe Admiralty Library.\nThe Ashmolean Society, Oxford.\nThe Radcliffe Library, Oxford.\nThe Royal Geographical Society.\nThe United Service Museum.\nThe Royal College of Physicians.\nThe Society of Antiquaries.\nThe Linnean Society.\nThe Royal Institution of Great Britain.\nThe Society for the Encouragement of Arts.\nThe Geological Society.\nThe Horticultural Society.\nThe Royal Astronomical Society.\nThe Royal Asiatic Society.\nThe Royal Society of Literature.\nThe Medical and Chirurgical Society.\nThe London Institution.\nThe Entomological Society of London.\nThe Zoological Society of London.\nThe Institute of British Architects.\nThe Institution of Civil Engineers.\nThe Cambridge University Philosophical Society.\nThe Literary and Philosophical Society, Manchester.\nThe Royal Society of Edinburgh.\nThe Royal Irish Academy.\nThe Royal Dublin Society.\nThe Royal Institution, Swansea.\nThe Asiatic Society at Calcutta.\nThe Royal Artillery Library at Woolwich.\nThe Royal Observatory at Greenwich.\nThe Observatory at Dublin.\nThe Observatory at Armagh.\nThe Library and Museum, Barbadoes.\nThe Observatory at the Cape of Good Hope.\nThe Observatory at Madras.\nThe Observatory at Paramatta.\nThe Observatory at Edinburgh.\n\nDenmark.\nThe Royal Society of Sciences at Copenhagen.\nThe Royal Observatory at Altona.\n\nFrance.\nThe Royal Academy of Sciences at Paris.\nThe Royal Academy of Sciences at Toulouse.\nThe Ecole des Mines at Paris.\nThe Geographical Society at Paris.\nThe Entomological Society of France.\nThe Dépôt de la Marine, Paris.\nThe Geological Society of France.\nThe Jardin des Plantes, Paris.\n\nGermany.\nThe University at Göttingen.\nThe Cesarean Academy of Naturalists at Bonn.\nThe Observatory at Manheim.\nThe Royal Academy of Sciences at Munich.\n\nItaly.\nThe Institute of Sciences at Naples.\nThe Institute of Sciences, Letters and Arts, at Milan.\nThe Italian Society of Sciences at Modena.\nThe Royal Academy of Sciences at Turin.\n\nSwitzerland.\nThe Société de Phys. et d'Hist. Nat. at Geneva.\n\nBelgium.\nThe Royal Academy of Sciences at Brussels.\n\nNetherlands.\nThe Royal Institute of Amsterdam.\nThe Batavian Society of Experimental Philosophy at Rotterdam.\n\nSpain.\nThe Royal Observatory at Cadiz.\n\nPortugal.\nThe Royal Academy of Sciences at Lisbon.\n\nPrussia.\nThe Royal Academy of Sciences at Berlin.\nThe Society of Experimental Philosophy, Berlin.\n\nRussia.\nThe Imperial Academy of Sciences at St. Petersburg.\nThe Imperial Observatory at Pulkowa.\n\nSweden and Norway.\nThe Royal Academy of Sciences at Stockholm.\nThe Royal Society of Sciences at Drontheim.\n\nUnited States.\nThe American Philosophical Society at Philadelphia.\nThe American Academy of Sciences at Boston.\nThe Library of Harvard College.\nThe Observatory at Washington.\nThe fifty Foreign Members of the Royal Society.\nA List of Public Institutions and Individuals, entitled to receive a copy of the Astronomical Observations made at the Royal Observatory at Greenwich, on making application for the same directly or through their respective agents, within two years of the date of publication.\n\nIn the British Dominions.\n\nThe Queen's Library.\nThe Board of Ordnance.\nThe Royal Society.\nThe Savilian Library, Oxford.\nThe Library of Trinity College, Cambridge.\nThe University of Aberdeen.\nThe University of St. Andrews.\nThe University of Dublin.\nThe University of Edinburgh.\nThe University of Glasgow.\nThe Observatory at Oxford.\nThe Observatory at Cambridge.\nThe Observatory at Dublin.\nThe Observatory at Armagh.\nThe Observatory at the Cape of Good Hope.\nThe Observatory at Paramatta.\nThe Observatory at Madras.\nThe Royal Institution of Great Britain.\nThe Royal Society, Edinburgh.\nThe Observatory, Trevandrum, East Indies.\nThe Astronomical Institution, Edinburgh.\nThe President of the Royal Society.\nThe Lowndes Professor of Astronomy, Cambridge.\nThe Plumian Professor of Astronomy, Cambridge.\nL. Holland, Esq., London.\nSir John William Lubbock, Bart.\nCaptain W. H. Smyth, R.N., Chelsea.\nSir James South, Observatory, Kensington.\n\nIn Foreign Countries.\n\nThe Royal Academy of Sciences at Berlin.\nThe Royal Academy of Sciences at Paris.\nThe Imperial Academy of Sciences at St. Petersburg.\nThe Royal Academy of Sciences at Stockholm.\nThe Royal Society of Sciences at Upsal.\nThe Board of Longitude of France.\nThe University of Göttingen.\nThe University of Leyden.\nThe Academy of Bologna.\nThe American Academy of Sciences at Boston.\nThe American Philosophical Society at Philadelphia.\nThe Observatory at Altona.\nThe Observatory at Berlin.\nThe Observatory at Breslau.\nThe Observatory at Brussels.\nThe Observatory at Cadiz.\nThe Observatory at Coimbra.\nThe Observatory at Copenhagen.\nThe Observatory at Dorpat.\nThe Observatory at Helsingfors.\nThe Observatory at Königsberg.\nThe Observatory at Manheim.\nThe Observatory at Marseilles.\nThe Observatory at Milan.\nThe Observatory at Munich.\nThe Observatory at Palermo.\nThe Observatory at Paris.\nThe Observatory at Seeberg.\nThe Observatory at Vienna.\nThe Observatory at Tubingen.\nThe Observatory at Turin.\nThe Observatory at Wilna.\nThe Dépôt de la Marine, Paris.\nThe Bowdoin College, United States.\nThe Library of Harvard College.\nThe Waterville College, United States.\nList of Observatories, Institutions and Individuals, entitled to receive a Copy of the Magnetical and Meteorological Observations made at the Royal Observatory, Greenwich.\n\n### Observatories\n\n- Altona . . . . . . M. Schumacher.\n- Armagh . . . . . Rev. Dr. Robinson.\n- Berlin . . . . . J. F. Encke.\n- Bombay . . . . . Dr. Buist.\n- Barnaoul . . . . . M. Prang, 1st.\n- Breslau . . . . . Prof. Boguslawski.\n- Brussels . . . . . A. Quetelet.\n- Cadiz . . . . . M. Cerquero.\n- Cairo . . . . . M. Lambert.\n- Cambridge . . . . Prof. Challis.\n- Cambridge, United States . . . Prof. Lovering.\n- Cape of Good Hope . . . T. Maclear, Esq.\n- Catherineburgh . . . M. Rochkoff.\n- Christiania . . . M. Hansteen.\n- Cincinnati . . . Dr. Locke.\n- Copenhagen . . . M. Oersted.\n- Dublin . . . . . Sir W. R. Hamilton.\n- Gotha .\n- Hammerfest .\n- Heidelberg . . . M. Tiedemann.\n- Helsingfors . . . M. Nervander.\n- Hobarton . . . Lieut. Kay, R.N.\n- Kasan . . . . . M. Simonoff.\n- Kew . . . . . Observatory.\n- Königsberg .\n- Kremsmünster . . . Prof. Koller.\n- Leipsic . . . . . Prof. Weber.\n- Madras . . . . . T. G. Taylor, Esq.\n- Manheim .\n- Marburg . . . . . Prof. Gerling.\n- Milan . . . . . M. Carlini.\n- Munich . . . . . Dr. Lamont.\n- Nertchinsk . . . M. Prang, 2nd.\n- Nikolaieff . . . Dr. Knorre.\n- Oxford . . . . . M. J. Johnson, Esq.\n- Paris . . . . . M. Arago.\n- Pekin . . . . . M. Gachkévitche.\n- Prague . . . . . M. Kreil.\n- Pulkowa . . . . M. Struve.\n- St. Helena . . . Lieut. Strange, R.A.\n- St. Petersburgh . . . M. Kupffer.\n- Seeberg . . . . . M. Hansen.\n- Singapore . . . Lieut. C. M. Elliot.\n- Sitka . . . . . Messrs. Homann and Ivanoff.\n\n- Stockholm . . . . . Prof. Selander.\n- Teflis . . . . . M. Philadelphine.\n- Toronto . . . . . Captain Lefroy, R.A.\n- Trevandrum . . . J. Caldecott, Esq.\n- Tubingen .\n- Upsal . . . . . Prof. Svanberg.\n- Vienna . . . . . C. L. von Littrow.\n- Warsaw . . . . . Col. G. Du Plat (British Consul).\n- Washington . . . Lt. Maury, U.S. Navy.\n- Wilna .\n\n### Institutions\n\n- Aberdeen . . . . . University.\n- Berlin . . . . . Academy of Sciences.\n- Bologna . . . . . Academy.\n- Bonn . . . . . University.\n- Boston . . . . . Academy of Sciences.\n- Bowdoin College . . . United States.\n- Bowditch Library . . . United States.\n- Cambridge . . . Trinity College.\n- Cherkow . . . . . University.\n- Dorpat . . . . . University.\n- Dublin . . . . . University.\n- Edinburgh . . . Observatory.\n- Edinburgh . . . Royal Society.\n- Edinburgh . . . University.\n- Glasgow . . . . . University.\n- Göttingen . . . University.\n- Harvard, U. S. . College.\n- Kiew . . . . . University.\n- Leyden . . . . . University.\n- House of Lords, Library . . . London.\n- House of Commons, Library . . . \" , \"\n- London . . . . . King's College.\n- London . . . . . Royal Institution.\n- Moscow . . . . . University.\n- Oxford . . . . . Savilian Library.\n- Paris . . . . . Academy of Sciences.\n- Paris . . . . . Board of Longitude.\n- Paris . . . . . Dépôt de la Marine.\n- Philadelphia . . . Philosophical Society.\n- Queen's Library . . . London.\nRoyal Cornwall Polytechnic Society . . . . . Falmouth.\nSt. Andrew's . . . . . University.\nSt. Bernard . . . . . Convent.\nSt. Petersburgh . . . . Academy of Sciences.\nSt. Petersburgh . . . . Geographical Society.\nStockholm . . . . . Academy of Sciences.\nUpsal . . . . . Society of Sciences.\nWaterville, U.S. . . . College Library.\n\nIndividuals.\nBache, Dr. A. D. . . . Washington.\nBirt, W. H., Esq. . . . London.\nChristie, S. H., Esq. . . Woolwich.\nColebrooke, Sir W. . . Guiana.\nDemidoff, Prince Anatole de Florence.\nDove, Prof. . . . Berlin.\nErman, Dr. Adolph . . Berlin.\nFox, R. W., Esq. . . Falmouth.\nGauss, Prof. . . . Göttingen.\nGilliss, Lt. J. M., U. S. Navy Washington.\nHarris, Sir W. Snow . . Plymouth.\nHolland, L., Esq. . . London.\nHoward, Luke, Esq. . . Tottenham.\nHumboldt, Baron . . . Berlin.\nKaemtz, M. . . . Dorpat.\nKupffer, A. T. . . . St. Petersburgh.\nLawson, Henry G., Esq. . Bath.\nLloyd, Rev. Dr. . . . Dublin.\nLoomis, Prof. . . . New York.\nLowndes Prof. of Astronomy Cambridge.\nLubbock, Sir John W., Bart. London.\nLütke, Vice-Admiral . . St. Petersburgh.\nMahlmann, Prof. . . . Berlin.\nMelvill, J. C., Esq. . . East India House.\nMentchikoff, Prince . . St. Petersburgh.\nPhillips, John, Esq. . . York.\nPlumian Prof. of Astronomy Cambridge.\nPresident of the Royal Society London.\nQuetelet, A. . . . Brussels.\nRedfield, W. C., Esq. . . New York.\nReid, Lieutenant-Colonel Barbadoes.\nRiddell, Capt., R.A. . . Woolwich.\nRoget, P. M., M.D. . . London.\nSabine, Lieut.-Col., R.A. . Woolwich.\nSenftenberg, Baron von Prague.\nSmyth, W. H., Captain R.N. London.\nSouth, S'. James . . . \" \"\nWartmann, Prof. Elie . . Lausanne.\nWrangell, Vice-Admiral . . St. Petersburgh.\nYounghusband, Capt. . . Woolwich.\nROYAL MEDALS.\n\nHER MAJESTY QUEEN VICTORIA, in restoring the Foundation of the Royal Medals, has been graciously pleased to approve the following regulations for the award of them:\n\nThat the Royal Medals be given for such papers only as have been presented to the Royal Society, and inserted in their Transactions.\n\nThat the triennial Cycle of subjects be the same as that hitherto in operation: viz.\n1. Astronomy; Physiology, including the Natural History of Organized Beings.\n2. Physics; Geology or Mineralogy.\n3. Mathematics; Chemistry.\n\nThat, in case no paper, coming within these stipulations, should be considered deserving of the Royal Medal, in any given year, the Council have the power of awarding such Medal to the author of any other paper on either of the several subjects forming the Cycle, that may have been presented to the Society and inserted in their Transactions; preference being given to the subjects of the year immediately preceding: the award being, in such case, subject to the approbation of Her Majesty.\n\nThe Council propose to give one of the Royal Medals in the year 1848 for the most important unpublished paper in Astronomy, communicated to the Royal Society for insertion in their Transactions after the termination of the Session in June 1845, and prior to the termination of the Session in June 1848.\n\nThe Council propose also to give one of the Royal Medals in the year 1848 for the most important unpublished paper in Physiology, including the Natural History of Organized Beings, communicated to the Royal Society for insertion in their Transactions after the termination of the Session in June 1845, and prior to the termination of the Session in June 1848.\n\nMDCCCXLVIII.\nThe Council propose to give one of the Royal Medals in the year 1849 for the most important paper in Physics, communicated to the Royal Society after the termination of the Session in June 1845, and prior to the termination of the Session in June 1848, and printed in the Philosophical Transactions.\n\nThe Council propose also to give one of the Royal Medals in the year 1849 for the most important paper in Geology or Mineralogy, communicated to the Royal Society after the termination of the Session in June 1845, and prior to the termination of the Session in June 1848, and printed in the Philosophical Transactions.\n\nThe Council propose to give one of the Royal Medals in the year 1850 for the most important paper in Mathematics, communicated to the Royal Society after the termination of the Session in June 1846, and prior to the termination of the Session in June 1849, and printed in the Philosophical Transactions.\n\nThe Council propose also to give one of the Royal Medals in the year 1850 for the most important paper in Chemistry, communicated to the Royal Society after the termination of the Session in June 1846, and prior to the termination of the Session in June 1849, and printed in the Philosophical Transactions.\n\nThe Council propose to give one of the Royal Medals in the year 1851 for the most important paper in Astronomy, communicated to the Royal Society after the termination of the Session in June 1847, and prior to the termination of the Session in June 1850, and printed in the Philosophical Transactions.\n\nThe Council propose also to give one of the Royal Medals in the year 1851 for the most important paper in Physiology, including the Natural History of Organized Beings, communicated to the Royal Society after the termination of the Session in June 1847, and prior to the termination of the Session in June 1850, and printed in the Philosophical Transactions.\nCONTENTS.\n\nI. The Bakerian Lecture.—Researches on the Tides. Thirteenth Series. On the Tides of the Pacific, and on the Diurnal Inequality. By the Rev. W. Whewell, D.D., F.R.S. &c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1\n\nII. On the Solution of Linear Differential Equations. By Charles James Hargreave, Esq., B.L., F.R.S., Professor of Jurisprudence in University College, London . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31\n\nIII. On a new substance occurring in the Urine of a patient with Mollities Ossium. By Henry Bence Jones, M.A., F.R.S., Physician to St. George’s Hospital 55\n\nIV. Examination of the proximate Principles of some of the Lichens. By John Stenhouse, Esq., Ph.D., Glasgow. Communicated by Thomas Graham, Esq., F.R.S. &c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63\n\nV. On the Heat disengaged during Metallic Substitutions. By Thomas Andrews, M.D., M.R.I.A., Vice-President of Queen’s College, Belfast, &c. Communicated by Michael Faraday, Esq., F.R.S. &c. &c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91\n\nVI. Report of Observations made upon the Tides in the Irish Sea, and upon the great similarity of Tidal Phenomena of the Irish and English Channels, and the importance of extending the Experiments round the Land’s End and up the English Channel. Embodied in a letter to the Hydrographer. By Captain F. W. Beechey, R.N., F.R.S. Communicated by G. B. Airy, Esq., F.R.S. &c., Astronomer Royal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105\n\nVII. On the Blow-hole of the Porpoise. By Francis Sibson, Esq. Communicated by Thomas Bell, Esq., F.R.S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117\n\nVIII. On the Corrections to be applied to the Monthly Means of Meteorological Observations taken at any hour, to convert them into Mean Monthly values. By James Glaisher, Esq., of the Royal Observatory at Greenwich. Communicated by G. B. Airy, Esq., F.R.S. &c., Astronomer Royal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125\n\nIX. On the Structure of Chitons. By J. E. Gray, Esq., F.R.S., F.Z.S. &c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141\n\nX. An Investigation on the Chemical Nature of Wax.—I. On Cerotic Acid, a new Acid contained in Bees’-Wax. By Benjamin Collins Brodie, Esq. Communicated by Sir Benjamin C. Brodie, Bart., F.R.S. &c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147\n\nXI. An Investigation on the Chemical Nature of Wax.—II. On the Chemical Nature of a Wax from China. By Benjamin Collins Brodie, Esq. Communicated by Sir Benjamin C. Brodie, Bart., F.R.S. &c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159\nADJUDICATION of the Medals of the Royal Society for the year 1848 by the President and Council.\n\nThe Copley Medal to John Couch Adams, Esq., for his \"Investigations relative to the disturbances of Uranus, and for his application of the inverse problem of perturbations thereto.\"\n\nThe Royal Medal in the department of Astronomy, to Thomas Galloway, Esq., for his Paper \"On the Proper Motion of the Solar System,\" published in the Philosophical Transactions for 1847.\n\nNo recommendation of the Royal Medal in the department of Physiology having been received, this Medal was awarded to Charles James Hargreave, Esq., for his Paper entitled \"On the Solution of Linear Differential Equations,\" published in the Philosophical Transactions for 1848.\n\nThe Rumford Medal to M. V. Regnault, for his \"Experiments to determine the Laws and the numerical data which enter into the calculation of Steam-Engines.\"\n\nThe Bakerian Lecture for 1848 was delivered by The Rev. William Whewell, D.D., F.R.S., and entitled \"On the Tides of the Pacific, and on the Diurnal Inequality.\"\nCONTENTS.\n\nXII. Observations on some Belemnites and other Fossil Remains of Cephalopoda, discovered by Mr. Reginald Neville Mantell, C.E. in the Oxford Clay near Trowbridge, in Wiltshire. By Gideon Algernon Mantell, Esq., LL.D., F.R.S., F.L.S., Vice-President of the Geological Society . . . . . . . page 171\n\nXIII. On the Structure of the Jaws and Teeth of the Iguanodon. By Gideon Algernon Mantell, Esq., LL.D., F.R.S., F.L.S., Vice-President of the Geological Society, &c. . . . . . . . . . . . . . . . . . . . . . . . 183\n\nXIV. Determinations of the Magnetic Inclination and Force in the British Provinces of Nova Scotia and New Brunswick, in the Summer of 1847. By Professor George W. Keely, of Waterville College, Maine, United States. Communicated by Lieut.-Colonel Sabine, For. Sec. R.S. . . . . . . . . . . . . . . . . . . . . . . . . 203\n\nXV. On a new Case of the Interference of Light. By the Rev. Baden Powell, M.A., F.R.S., F.R.A.S., F.G.S., Savilian Professor of Geometry in the University of Oxford . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213\n\nXVI. On the Theory of certain Bands seen in the Spectrum. By G. G. Stokes, M.A., Fellow of Pembroke College, Cambridge. Communicated by the Rev. Baden Powell, M.A., F.R.S., &c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227\n\nXVII. An Experimental Inquiry undertaken with a view of ascertaining whether any, and what signs of current Electricity are manifested during the organic process of Secretion in living animals, being an attempt to apply some of the discoveries of Faraday to Physiology. By H. F. Baxter, Esq. Communicated by Sir Benjamin Brodie, Bart., F.R.S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243\n\nXVIII. On the Direction assumed by Plants. By Professor Macaire of Geneva. Communicated by P. M. Roget, M.D., Sec. R.S. . . . . . . . . . . . . . . . . . . . . . . . . . 253\n\nXIX. Microscopical Examination of the Contents of the Hepatic Ducts, with conclusions founded thereon as to the Physiological signification of the Cells of Hepatic Parenchyma, and as to their Anatomical relation to the Radicles of the Hepatic Ducts. By T. Wharton Jones, F.R.S. . . . . . . . . . . . . . . . . . . . . . . . . . 277\n\nIndex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281\n\nAPPENDIX.\n\nPresents", "source": "olmocr", "added": "2026-01-12", "created": "2026-01-12", "metadata": { "Source-File": "/home/jic823/projects/def-jic823/royalsociety/pdfs/108281.pdf", "olmocr-version": "0.3.4", "pdf-total-pages": 14, "total-input-tokens": 22182, "total-output-tokens": 7087, "total-fallback-pages": 0 }, "attributes": { "pdf_page_numbers": [ [ 0, 0, 1 ], [ 0, 0, 2 ], [ 0, 1977, 3 ], [ 1977, 3829, 4 ], [ 3829, 6884, 5 ], [ 6884, 9270, 6 ], [ 9270, 12294, 7 ], [ 12294, 14000, 8 ], [ 14000, 15711, 9 ], [ 15711, 17607, 10 ], [ 17607, 20976, 11 ], [ 20976, 20976, 12 ], [ 20976, 22039, 13 ], [ 22039, 24444, 14 ] ], "primary_language": [ "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en" ], "is_rotation_valid": [ 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 ], "is_table": [ false, false, false, false, false, false, true, false, false, false, false, false, false, false ], "is_diagram": [ false, false, false, false, false, false, false, false, false, false, false, false, false, false ] }, "jstor_metadata": { "identifier": "jstor-108281", "title": "Front Matter", "authors": null, "year": 1848, "volume": "138", "journal": "Philosophical Transactions of the Royal Society of London", "page_count": 14, "jstor_url": "https://www.jstor.org/stable/108281" } }