828 Index, 



Fire, management of ii, 500. 



Essay on (with plates) iii, 1-165. 



necessity of being able to regulate iii, 34. 



Fire-balls ii, 347>352. 



Fire-place doors iii, 25. 



for kitchen boiler iii, 379. 



Fire-places, chimney. Essay on (with plates) . . . ii, 484-570. 



closed . iii, 34, 193, 489-504- 



cottage iii, 151. 



kitchen, attempts to improve iii, 193, 230. 



imperfections of iii, 192, 227. 



proper materials for ii, 503. 



Fire-places and boilers, experiments on various . . iii, 63-119. 



Fixed air, use of, in blow-pipe iii, 59. 



Flame, attempt to shoot, instead of bullets i> 96. 



a non-conductor of heat iii, 55. 



transparent to light iv, 39, 226. 



Flannel, use of, for clothing i> 235. 



Fluidity, nature of i, 275. 



the life of inanimate nature i, 363. 



Fluids, propagation of heat in i, 237-400. 



Fluoric (Jiydrofluoric) acid for etching glass iv, 180. 



Food, Essay on iv, 395-490. 



for cattle, advantage of cooking iv, 405. 



Force of fired gunpowder i, 98-172. 



Fordyce, experiments on weight acquired by water on 



freezing ii, 2. 



Friction, source of heat excited by (plates) i, 469-493 ; ii, 210-221. 



Frigate, proposed plan for (with plates) iv, 680-691. 



Frigorific power defined ii, 426. 



rays emitted from cold bodies ii, 63-130. 



more emitted by ice than by metallic surfaces ii, 66. 



reality of ii, 70. 



Fuel, economy of iii, 1-165, 502. 



waste of ii, 542 ; iii, 174-190, 502. 



estimated amount of . , iii, 6, 11. 



Fulminating gold, explosive force of i? 89. 



Fundamental principles of establishments for the poor iv, 327-393. 



Fur, warmth of i, 463 ; ii, 128 ; iii, 46. 



Furnaces, portable iii, 401-419, 453. 



