484 INDEX. 
Steam, Or aqueous vapour, exhaled from the lungs in a 
day, equal to 1.55 Ib., 29reasons for supposing it not 
formed from its ultimate elements in the lungs, 31. 
’ T } 
Theorems and Problems, on the vis viva, 270, et Seq- 
Thunder-storm, remarkable effect of, 259, et seq. 
Time, in mechanics, not a necessary element of the mea- 
sure of moving force, 227. 
Uric acid, memoir on, 391—chemical properties of»397, 
et seq.—urates, 403—reasons for classing it amongst 
acids, 406, 407—-decomposition of by other acids, 498— 
destructive distillation of, 409. ; 
Vv ; 
Vince, Mr. his proposition on the communication of force, 
118. : 
Vis impressa, a phrase used by Newron,, for pressure mul- 
tiplied by time, 224. 
Vis viva, a phrase used by Lersntrz, &c. for moving force, 
or pressure multiplied by space—and vis mortua for pres 
sure simply, 224. 
» principles of, elucidated, 270, et seq. 
—— 
a i 
Water, heats through the several Dido of the thermo- 
meter, nearly in equal times, 5. 
Wanrine, Mr. argues the force of water against a wheel is 
as the relative velocity, 156—his omission, 164. 
Wealth defined—is increased by foreign commerce, 47. 
Wirppore, Rev. Charles, his demonstration of Lawson’s 
theorems, 414, ef seq. 
Wo xtaston, Dr. concludes the measure of mechanic force 
to be as'the square of the velocity, 133—his explanation 
of a case where the whole force is transferred from one 
body to another, 198—his particular case of collision 
considered, 250, et seq. 
PLL LLL 
Russell & Allen, Printers, Manehester. 
