An enquiry into the moving powers employed in the circulation of the blood : in a lecture, delivered at Newcastle, the 28th of December, 1773 ... / by Andrew Wilson.

  • Andrew Wilson
Date:
MDCCLXXIV [1774]
Catalogue details

Licence: Public Domain Mark

Credit: An enquiry into the moving powers employed in the circulation of the blood : in a lecture, delivered at Newcastle, the 28th of December, 1773 ... / by Andrew Wilson. Source: Wellcome Collection.

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    dency of fuch particles to feparate motion; there is no occafion for being more particular on this article. We fliall therefore proceed to confider evacuation, transfufion depending upon it. The evacuations of the circulating fluids, then, are performed either without the body, that is from the furface of the body, to which the common air has accefs; or within the furface of the body. The iafl, namely, the evacuations within the fur¬ face of the body, are either drained off by glan¬ dular fecretion, or accidental efcape of humidity into all the interflices and exterior furfaces of every vefiel and fibre. Thefe then 1 would have you to confider, Gentlemen, as the leading cirqumftances which not only give direction to the motion of the fluids, but which a&iveJy follicit them in their courfe, as I fiiall fhew more particularly by and by. Let us next confider what are thefe requifites in the fluids themfelves, which difpofe them to what I fliall be vrell enough underflood in calling felj« motion. The firft requifite then is, that a fluid be endowed with an evaporable degree of heat: Such a degree as difpofes it to prefs towards a colder place and ftate, and to fly off in vapour wherever it can efcape or get vent. This quality the blood is poffeffed of in a very remarkable degree. It difcovers more vapour or volatile effluvia in it, than any liquor of the fame degree of tenacious vifcidity that
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