Index. 84 1 



Velocities of integrant particles of fluids . i, 360. 



Ventilation of warm rooms ii, 488. 



Verona, kitchens in hospitals at, iii, 125, 126, 213 (plate) ; iv, 324. 



poor of . iv, 325. 



Viscosity, effect of, on propagation of heat in liquids . . ii, 287. 



of water ii, 286, 298, 315. 



Vision, circumstances favourable to distinct iv, 104. 



Vital principle, conjectures respecting the i, 363. 



Voluntary subscriptions for the relief of the poor . . iv, 518-523. 



Warm bathing, salubrity of . . ... . ., . . . iv, 583-613. 



rooms, salubrity of iv, 567-581. 



Warmth of substances used for clothing . . . . i, 442 ; ii, 201. 

 depends on polish of surface ii, 97, 128. 



Waste of fuel ii, 542 ; iii, 174-190, 502. 



Water, adhesion of particles of, to each other . . . ii, 290-317. 



amount attracted from the air by various woods . . ii, 455. 

 contained in seerwoods ii, 452. 



a non-conductor of heat. (See Propagation of heat in fluids^ 



apparent increase of weight on freezing ii, 2. 



expands on freezing i, 284,310. 



heat developed in condensation of vapour of . . . ii, 417. 



in economy of nature . . . . i, 263, 313-333 j ii, 308. 



in food, part played by iv, 400. 



lack of perfect fluidity of .... ii, 286, 298, 302, 315. 



loss of heat when freezing ii, 15. 



on hot surfaces i, 381 ; ii, 100. 



production of air from i, 191-231. 



specific quantity of latent heat in ii, 16. 



temperature of, at its maximum density . . . ii, 258-273. 



Wax and tallow candles compared iv, 200. 



heat developed in combustion of ii, 380. 



Weight ascribed to heat ii, 1-22, 209. 



Wheels, broad felloes for iv, 661-678. 



Wicks, best form of iv, 153, 164. 



preparation of iv, 160. 



Windows, double, utility of iii, 46 ; iv, 790. 



use of ground glass in iv, 176. 



Winds, conjectures respecting the proximate causes of . . i, 394. 

 service of, in economy of nature i, 464. 



