The Croonian lecture on muscular motion / by George Fordyce.

  • Fordyce, George, 1736-1802.
Date:
[1788]
Catalogue details

Licence: Public Domain Mark

Credit: The Croonian lecture on muscular motion / by George Fordyce. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    « % . f' THE CROGNIAN LECTURE, See. • V Read at the ROYAL SOCIETY, Nov. 22, 1787. I The fubjefl of mufcular motion has been fo often con- fidered, and in fo many lights,' that it is hardly poffible to avoid many obfervatiohs which are trite,- and even puerile y which, when they occur, ,Lbeg the learned Society to forgive. They will alfo find fo little new, or even nothing, that I' fhould be inexcufabloln taking up their time, Ifr theYubje£t was ' not annually to be dlfcuffed before them. In confiderlng muf- cular motion, I muft begin with fonae obfervations on motion in general, and with that well known, and felf-evident axiom, that one particle of ihatter,; con fidered by itfelfi will remain* at refi if it, be at .reft,,.and will• continue, in motion if it be in motion, and in the. fame-dire(ftion.* This has been called the * ^ - . • - • r I . ' ' ‘ ’ ; vfs Injita, or vh inertla^ oi matter.-It may be faid in other words, that a fingle particle of matter being at reft,, would, therefore alvvays continue at reft, if it* were npt for-:fome external im- pulfe made on it. 'This^-irnpulfe may be from fome other par- ticle,of matter-in rnotion impinging upon It, and\commuai- eating part'of its motion to/it, while it communicates an equal quantity of its reft to’the matter fo impinging upon it, fo that the quantity of motion and reft fhnll be the fame after the impingilig, in both bodies, as they were before: .or, in, other Words, a, fimple partiplp ,of ,matter in motion would always continue