ICO Heemafiatics. 
Blood to Air will be 241.(3 to i, bccaufe 
' * 3 *4 * 
— 241.6. 
. 23. The Queftion is reduced to this, n)iz. 
what gives thirty fix Degrees of feiifible Heat 
how much will it give to one ? 
24. The Anfweris ^6 x ^-^=^.^=0.149 
or about i4S)th of a Degree. 
25. Now as 3" 0.1451 : : 60 : : 2.518, there- 
fore in one Minute the Heat added to the 
Blood in the Lungs will be 2.518 Degrees, 
the whole Heat of the Blood there being 
64^ 2.p8 Degrees —66.pS, 
16. So that if a Man holds his Breath one 
Minute, the Blood in the Lungs from lixty four 
Degrees of Heat will be increafed to 66.518, 
and in two Minutes (during which time feve- 
ral Men hold their Breath or can blow with- 
out ceafing, as Gram the Trumpeter can) the 
Heat will be got up to 651.516. 
27. But then upon the Mixture of that 
warmer Blood with the reft of the Mafs of 
Blood, the fenfible Heat muft be diminifhed ; 
for that which in two Minutes, gives to the 
Quantity of Blood in the Lungs the fenfible 
Heat of 5.516, will give as much lefs fenfible 
Heat to the whole Mafs of Blood, as the Quan- 
tity ^of the w^hole Mafs is greater than one, 
which 
