Hizmajlatm. 99 
1 6 , 1 communicated thefe Data to Dr. Defa-^ 
guliers, who together with Mr. Ch, de Labelfy 
who was then prefent, both agreed in the fol- 
lowing Calculation of the Degree of Refrigera- 
tion which the Blood received from the infpired 
Air, viz. 
17. Aftual, is. to fenfible Heat, as felt by 
the Hand or fliewn by a Thermometer, as 
‘ Momentum is to Velocity. 
I 18. Senfible Heat multiplied by the Quan- 
tity of Matter, gives afibual Heat or Momen- 
tum of Heat. 
I5>. Therefore adual Heat divided by Mat- 
ter gives fenfible Heat, as Momentum divickkl 
by Matter gives Velocity. 
20. Therefore as we increafd the Matter,, 
we decreafe the fenfible Hear. 
21. What gives fixey four Degrees of fen- 
fible Heat to one, gives but one D%ree of 
fenfible Heat to fixty four. 
22. The fpecific Gravity of Blood to that- 
of Air, being as 841 to i,* if a Bulk of Air, 
which is to a Bulk of Blood, as 3.48 to i, 
fo condenfed as to be reduced to the Bulk i, 
or the fame Bulk as the Blood, it muft Be 
brought to a fpecific Gravity fo much greater> 
than the Difproporcion or fpecific Gravity of 
H 2 Blood 
