Flemyng's writings show him to have been well abreast of the best physiological teaching of his time, and an original experimenter and reasoner as well. One of the Haller letters (iii. 369) contains a statement of the fact that
motor and
sensory nerves are anatomically distinct, although they might coexist in the same bundle; the experimental proof came many years after. The
ossicles of the
ear serve the same purpose, he says, as the wooden rod inside a violin, 'ad continuandos tremores.' His 'Introduction to Physiology,’ 369 pages, 8vo, Lond. 1759, being the substance of his London lectures increased to twenty-eight, is full of the latest information well digested. He employed a person in the
Norway trade to get for him a manuscript copy of a paper on the resuscitation of the drowned by a
Copenhagen authority. His first work, dated from Hull in June 1738 and published at York in 1740, was 'Neuropathia,’ a Latin poem in three books on
hypochondriasis and
hysteria, with a prose summary and additions prefixed, dedicated to
Peter Shaw ('Doctissime Shavi!’); it was republished at
Rome, with an Italian translation by Moretti, in 1755. His next venture was 'A Proposal for the Improvement of Medicine, &c.,’ being a collection of therapeutic essays on the use of bark in
smallpox, on limes and other fruits and vegetables in
scurvy, &c.; it was dedicated to
Mead, who had been pleased with the 'Neuropathia.' In 1748 he published a new edition, much enlarged, and with remarks on
Berkeley's tar water doctrine and on the bishop's use of the term ‘
panacea.’ In 1751 he published in London 'The Nature of the Nervous Fluid, or Animal Spirits,’ an attempt to adapt the latter doctrine to current nervous physiology. In the same year he published anonymously 'A new Critical Examination of an Important Passage in Mr. Locke's Essay on Human Understanding [on the possibility of thought being superadded to matter], in a familiar letter to a friend.' In 1753 he issued a physiological comment on Solano's prognostics from the pulse (
dicrotism, intermittence, &c.), an account of which had been brought to England by Dr. Nihell, physician to the English factory at
Madrid. In 1755 Flemyng published a paper in the 'Philosophical Transactions' on the imbibition of the
liquor amnii by the fœtus. Another paper, on
corpulence, was read at the
Royal Society in 1757, but not issued until the author printed it in 1760; it was translated into German by
Joseph Jakob Plenk at
Vienna in 1769, and reprinted in London as late as 1810. In 1754 he published at York 'A Proposal to diminish the Progress of the Distemper among the Horned Cattle' (2nd edition, Lond. 1755). His other writings are a 'Dissertation on James's Fever Powder' (Lond. 1760), and 'Adhesions or Accretions of the Lungs to the Pleura' (Lond. 1762), discussing the divergent views of Boerhaave and Haller as to the effects on the breathing. A disparaging criticism of this unimportant piece by a London reviewer caused him to issue the remainder of the impression with a 'Vindication' in 1763. ==References==