INDEX, 479 
co 
Carbonic acid gas, quantity of, expired ina day = 2.8 Ibs. 
troy, 27—or = 33 lbs, 36—quantity of, in the atmo- 
_ sphere, is in all probability gradually increasing, 41. 
Change of figure, one great object of the application of 
mechanical force; various instances of, 220—Change 
of motion, the other great object of mechanical force, 
221—formule for estimating the moving force expended 
in each, 230, . 
Collision, various cases of considered, 120, 121 POO SM abe 
&c. 250. 
Crawrorp, Dr. his theory of animal heat stated, 17—it 
continues uncontroverted, 38. 
D 
D’AemsBert, M. on the measure of force, 130, 131, 136, 
137, 180—on the case of one elastic body striking two 
others, 206, 207, 
Dattoy, Mr, John, on respiration and animal heat, 15, 
Davy Sir Humphry, his theory of galvanic electricity, 
305. 
De Borpa, M. argues that the force of water against a 
wheel is as the relative velocity, 155—his omission, 164, 
De Prony, M. observes there are various measures of force, 
130—asserts the dispute about the vis viva is merely 
verbal, 131—his explanation of mixed motion, 175. 
Dewar, Henry, M. D. on foreign commerce, 45, 
Du Buat, M. on water wheels, &c. 151,157, 158—his 
theory of non-pressures controverted, 154, 
E 
Ebbing and flowing well, observations on one, at Giggles- 
wick, 354 e¢ seq.—table of observations on, 371, 
Edinburgh Reviewers are of opinion that the force of a 
