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London : Printed for J. Wallis, in Ludgate Street, 1779, 8°, (2), 81 pp., feiner Halbledereinband. Rare First Edition! "Mr. Hey published, in the year 1779, " Observations on the Blood," a small tract in octavo containing eighty-one pages. In this production the author dissents from some opinions maintained by the late Mr. Hewson, in his Experimental Inquiry, wherein he undertakes to prove that " inflammation, instead of increasing the disposition of the blood to coagulate, really lessens it ; and instead of thickening the blood, really thins it ; at least, that part which forms the crust ; viz the coagulable lymph." Mr. Hey likewise controverts the experiments made, and the inferences deduced, by Mr. Hewson on the state of the blood drawn from the bloodvessels of dying animals. It seems that Mr. Hewson having remarked, that the blood taken from a person labouring under an inflammatory disease was longer in coagulating than blood drawn in a healthy state, concluded, that inflammation has the power of attenuating the coagulable lymph-so that the density, or consistence, of the coagulating part is lessened by the disease; hence he assumes that inflammation pro-uces a change in the properties of the coagulable lymph. As a matter which may gratify those whose curiosity induces them to trace the progress of improvements and discoveries in medical science, it may be remarked, that this observation of Mr. Hewson had been anticipated by Dr. Davies in an essay on the analysis of the blood' printed in 1760." John Pearson, The Life of William Hey, 1822 William Hey (1736-1819) was a surgeon at Leeds General Infirmary from its opening in a temporary building in 1776, and senior surgeon from 1773 to 1812. He gave his name to Hey's amputation (a tarso-metatarsal amputation), Hey's internal derangement (dislocation of the semilunar cartilages of the knee joint), Hey's ligament (the semilunar lateral margin (falciform margin) of the fossa ovalis), and Hey's saw, used in skull surgery. Hey served as mayor of Leeds in 1787-88 and 1802-03. In 1783 he was President of the Leeds Philosophical and Literary Society. He also founded the Leeds Club. In March 1775, he was elected a Fellow of the Royal Society.[3] He was one of the founding members of the Leeds Library, alongside his friend Joseph Priestley and other surgeons, clergymen, leading industrialists and businessmen. Seller Inventory # 66598
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