382 , Heat by Combustion. 
6. Animal Heat.—The following is stated by Despretz to 
be the temperature of the bodies of the animals named, when 
the temperature of the air was 15.15. The scale is doubtless 
that of the centigrade thermometer. 
Mean temp. 
Nine men, aged 30 years, yg © Oak? 
_ Fourmen “ 68 years, 37.1% 
- Four young men, 18 years, 36.99. 
_. Three male children, 1 to 2 days, 35.06... 
- Twoadult ravens, eee, 
SRO OWIBs + a ee <* | ae 
An adult screech-owl,  ... .. AAT, 
AG adult Rel i as ar" Sh 
Three aearow?, well feathered, 39.08 
_ A full grown sparrow, 41,67. 208 
Two rooks, just beginning to eat, 41.17 3 
Dog, 3 months old, 39.48 ces 
Adult male cat, 30.78 
Adult Guinea pig, (a 
Two carps, RiP) ee 
Two tenches, 11,54 © 
Annales de Chimie. Aott, 1825, 
7. Heat by Combustion.—The same chemist found, during. 
his researches on respiration, that hydrogen melts, in burn-_ 
ing, 315.2 times its weight of ice, and carbon 104.2, It is 
remarkable that the numbers 315.2 and 104.2 are almost ri-_ 
gorously proportional to the weight of oxygen absorbed by. 
ydrogen os ay For, according to the chemical pro- 
portions of Berzelius, supposing the first number 315.2, the 
7. 
