An account of animal secretion, the quantity of blood in the humane body, and muscular motion / By James Keill.

  • Keill, James, 1673-1719
Date:
1708
Catalogue details

Licence: Public Domain Mark

Credit: An account of animal secretion, the quantity of blood in the humane body, and muscular motion / By James Keill. Source: Wellcome Collection.

    203/228 (page 169)
    fpace that one alone would do it - becaufe I fuppofe that both Blad¬ ders contract equally, and cofi*, . • fequently the Contra&ion of both together will be double the Con- tra&ion of either. Three Blad¬ ders thus joined and diftended will raife the Weight to triple the Height, and four to quadru¬ ple • fo that if there were a String of Bladders join’d together, of equal Bulk, and like Figures, the fpace through which the Weight wou’d rife, wou’d be proportional to the number of Bladders, or, which is the fame thing, to the length of the String. Each Fibre of a Mufcle confifting of a Multitude of fmall Veftclesy re- fembles a firing of Bladders $ and therefore the Contra&ion of the Mufcle, is always proportional to the length of its Fibres. And be¬ ing