PAUL-JAQUES, born at Caen in 1701, was professor of medicine in the royal college of Paris, physician in ordinary to the queen, and a member of the Royal Society of London, and of the Academy of Sciences of Paris. These stations were a proper reward for his very extensive information in medicine and chemistry; and his amiable and steady character procured him many friends and protectors. He was very unlike some modern physicians, who put little trust in medicine; and was greatly displeased to hear any ill spoken of his profession. He observed one day to a young man who took this liberty, that all great men had respected medicine: "Ah! said the young fellow, you must at least except from the list one Mother." But then, instantly replied the doctor, "you see he is dead." He is said to have believed the certainty of his art as firmly as a mathematician does that of geometry. Having prescribed a great many medicines for a celebrated man of letters, who followed his directions exactly, and was cured, Malouin eagerly embraced him, saying, "You deserve to be sick." As he valued the rules of medicine still more on his own account than on that of others, he observed, especially in the latter part of his life, a very austere regimen. He strictly practised the preservative part of medicine, which is much more certain in its effects than the restorative. To this regimen Malouin was indebted, for what many philosophers have desired in vain, a healthy old age and an easy death. He was a stranger to the infirmities of age; and died at Paris of an apoplexy, the 3d of January 1778, in the 77th year of his age. By his will he left a legacy to the faculty of medicine, upon condition of their holding a public meeting every year for the purpose of giving the public an account of his labours and discoveries. Malouin was economical, but at the fame time very disinterested. After two years of very lucrative practice, he left Paris and went to Versailles, where he saw very few patients, observing that Malouin that he had retired to the court. His principal works are, 1. Traité de Chimie, 1734, 12mo. 2. Chimie Médicinale, 2 vols. 12mo, 1755; a book full of curious observations, and written in a chaste and well adapted style. He had the character of a laborious chemist; and he was a well-informed and even a distinguished one for the age in which he lived; but his knowledge of chemistry, it must be confessed, was very imperfect, compared with the state of the science in the present age, in which it has assumed a new face, that probably will not be the last. 3. Some of the articles in the Collection published by the Academy of Sciences on the arts and professions. A circumstance which happened at a meeting of the academy does as much honour to his heart, as any of his works do to his understanding. A new treatise on the art of baking, wherein some of Malouin's ideas were combated, was read by M. Parmentier before his fellows, among whom was the old doctor. The young academician, who knew how easily self-love is hurt, was afraid to meet his looks; but no sooner was the reading finished, than Malouin went up to him, and embracing him, "Receive my respects (said he), you have seen farther into the subject than I did." 4. He was likewise the author of the chemical articles in the Encyclopédie.

Of the same family was Charles MALOUIN, who graduated as a doctor of medicine in the university of Caen, and died in 1718 in the flower of his age. He published a Treatise on Solids and Fluids, Paris 1718, 12mo.