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 ing my hand in the giafs a whole hour, I collected the perfpirable 

 matter, .and found it to wiigh tln-ee thirty fecond parts, being a 

 lixtcenth and the half of a fixteenth part of an ounce; 



Hereupon, I began to coniider and realbn thus with myfelf ; if 

 the perfpiration in every part of one's body is in the fame propor- 

 tion, as in the experiments with the hand, how great a quantity of 

 moillure mull iflue from our whole bodies, and how necellary mull 

 it be when we take any medicine to promote perfpiration, that we 

 fliould alio recruit our llrength by fome reftorative liquor, fuch as 

 either wine and water fweetened and boiled with the yolk of an 

 egg, or elfe drink meat broth ; efpecially if we confider, that the 

 health and ftrength of our bodies depends on the juices. 



In order to make an eftimate of the , roportion the hand bears to 

 the whole body, I filled the before mentioned glafs jar with water to 

 the brim, and having placed it in a larger vell'el, I thrull my hand 

 into it : the water which ran over, and was equal to the lize of my 

 hand, I collected, and found it to weigh eleven ounces- I am in 

 deed aware that we cannot make a true computation of the furface 

 of the body by that of the hand, becau e the hand is furnillied with 

 fingers, from which the perfpirable matter illues. However, if the 

 perfpiration is the fame throughout the body as in the hand, I 

 will venture to fay, that according to my preceding obfervations, 

 I fliould perfpire in an hour's time, about the quantity of twenty 

 ounces. For I reckon my body to weigh one hundred and fifty 

 pounds, and my hand eleven ounces, and I compute that eleven 

 ounces weight of water contain eighteen one-third cubic inches, 

 and this I fet down as the folid contents of my hand. Farther, I 

 reckon that fixty-five pounds weight are a cubic foot of water, and 

 contain 1 728 inches; and according to this calculation, we fliall fee 

 that the fize of my whole body is almost two hundx-ed and eighteca 

 times larger than that of my hand. 



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