( 37i 
infenfible Peripiration, in a Minute, is th6 
1200 Part of the Place it comes from, t\ e t 
1200 Scruples of the Skin perfpires one 
Scruple in a Minute ; or the whole Skin 
fhall perfpire a Quantity of Matter equal to 
the Weight of the whole Skin in 20 Hours, 
i. e . in 1200 Minutes 5 or one Ounce of the 
Skin perfpires 1-1200 part of a Dram in 
a Minute. Now fuppofing a fquare Inch 
of the Skin weigh one Ounce, then this 
Inch perfpires 1-1200 Part of a Dram in a 
Minute ; but the fame Inch of Skin, in the 
Bath, is preffed upon by an additional 
Weight of Water, equal to 96 Drams, of' 
24 cubical Inches of Water. Now finc£ 
only one 1200 Part of Matter or Weight is 
perfpired from an Inch of the Skin in a 
Minute, therefore is the Elevation or Pro- 
trulion of the Matter perfpirable refilled 
by a Weight 1 15200 times greater than it- 
felf; for 1200 multiplied by 96, makes 
1 15200 ; but this is not credible nor poffi- 
ble ; fo that we muft allow tepid Water to 
enter into and mix with the animal Juices 
in Bathing : Of this we are convinced not 
only by Theory but Experience, for we 
have found fome, that after lirong Rub- 
bing and Friftion, and being drefTed ~ of 
B b 2 an 
) 
