(478) 
INDEX. 
—>>O<e- 
A 
Aun and PEPYS, Messrs. their results on respira- 
tion, &c. 35. et segs 
Animal Heat, how acquired, 17—Dr. Crawrorn’s theory 
of, stated, ibid.—is less in proportion as the carbonic 
acid evolved in respiration is less, 42. 
Aqueous vapour, see steam. 
Atmosphere, gradual deterioration of, considered, 39—quan- 
tity of carbonic acid in it estimated—this quantity is 
not less than known natural operations would produce 
in 6000 years, 41. 
Arwoop, Mr. conceives the measure of force to be, in 
rotatory motion as the mass into the square of the velo- 
city, in rectilinear motion as the mass into the velocity, 
—and that in mixed cases there is no measure, 108, 109. 
B 
Barker’s mill, explanation of its principles, 240. 
Bernovtut, M. Daniel, his proposition on bydrodynamcis, 
159—important proposition on the force of effluent 
water, 234, 
———--——, M. John, his observation on the change of 
figure in bodies by collision, 190. 
Birds, see Summer-Birds. 
Bostock, Dr. his theory of galvanic electricity, 303. 
Bropiz, Mr. on animal heat, 42. 
