The Crounian lectures on muscular motion. For the years MDCCXLIV and MDCCXLV. Read before the Royal Society ... Being a supplement to the Philosophical Transactions for those years / [James Parsons].

  • Parsons, James, 1705-1770
Date:
1745
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Licence: Public Domain Mark

Credit: The Crounian lectures on muscular motion. For the years MDCCXLIV and MDCCXLV. Read before the Royal Society ... Being a supplement to the Philosophical Transactions for those years / [James Parsons]. Source: Wellcome Collection.

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    Regius, and Dr. Scarborough, he endeavours to found his Rcafoning upon Mechanical Laws, in accounting for Mufcular Motion; and lays it down as a princi¬ pal Maxim, That the Motion of every Mufcie is be¬ gun by a certain fpirituous Liquor palling from the Nerves; but is accompjifhed, or finifhed by two other ncccflary Caufes which fucceed it. He defpairs that any one can ever arrive at the Knowledge of the Man¬ ner in which the Soul a&supon the Body, and there¬ fore avoids troubling himfelf about it; but produces many Reafons to fhew, that whatever it is that gives Motion to the Mufcles, muft nepeffarily pafs by the Nerves. This leads him to inquire into the Stru&ure of a Nerve ; which, he fays, “ Is com- u poled of a certain medullary Subftance full of <c juice, with a double Membrane which involves “ that Subftance^ and alfo an infinite Number of “ little Cords within thefe Membranes and medul- “ lary Subftance, extended from their Beginning to “ the very extreme Capillaments”, which are di* fperfed and inferted into the Parts of the Mufcie. Bat Dr. Croune refers to it himfelf as his own, in a Paper, />. 25, intituled, An Hypothecs of the Structure of a Mufcie, and the Rea- Jon of its Contraction. [Read in the Surgeons Theatre, anno 1694, 1695]. This (fays Profeffor Ward) is the Subftance, or Heads only, of the Dodor’s Difcourfes upon that Subject, published by Mr. Hook, in his Philofophical Collodions, Num. ii,Sech. 8. P. 22.; which, being afterwards tranllated into Latin, was inferted in the^A* Eruditorum anno 1682, p. 194. with the Title He Motu Mufculorum. See that learned Author’s Lives of the Profejfors of Grefham - College, p. 323.