GENERAL INDEX. 



411 



Telegraphic batteries, improved, 114 



register, Batchelder's, 

 Telegraphing, acoustic, 181 



Telescope, gigantic, 154 



Temperature, new method of meas- 

 uring high, 174 

 Terrestrial magnetism, 121 

 Tertiary formation, flora of, 

 TESCHEMACHER, MR. J. E., 315 

 Testimony, chemical in cases of poi- 

 soning, 256 

 Thalium, new earth, 290 

 Thorina identical with Donarium, 291 

 THURSTON & GREEN, MESSRS., 53 

 Tibet and Western Himalaya, 

 Tide, lunar, atmospheric, 375 

 Timber, effect of steam on, 107 

 Tin plates, 67 

 Tissue, artificial formation of cellu- 

 lar, 252 

 Titanium in mineral waters, 203 

 TOURMALINE, BROWN, 297 

 Traveller, the lost, 386 

 TRAVELLER'S CAMERA, 157 

 Tree, the swallow, 351 

 TREMPER. JOHN, 53 

 Tubular boiler, new, 51 

 Tunnel, great, in Hungary, 377 

 Type casting machine, new, 76 

 TYNDALL, DR., 



Universe, true place of the sun in, 140 

 reconcentration of the me- 

 chanical energy of, 184 

 United States, observations on the 



coal formation of, 314 



Utah, Salt Lake of, 284 



Valley of the Amazon, resources of, 397 

 Valve, improved safety, 

 Variola and vaccination, 354 



VAUGHAN, DANIEL, 364 



Vegetable and animal kingdom, re- 

 lation between the vital functions 

 of, 318, 



Ventilating railroad cars, improve- 

 ments in, 57 

 Vermout,'gold in, 303 



Virulent matters, effects of swallow- 

 ing, on man and animals, 342 

 Voices, human, imitating musical in- 

 struments, 181 

 Volcanic eruption at the Sandwich 



Islands, 



eruption of Mt. Etna, 287 



Voltaic Pile, improvements of the, 113 

 Vulcanization of India Rubber, 332 



" in the 



cold way, 234 



Wall, modern Cyclopean, 37 



Wallsend Colliery, evolution of gas 



in, 280 



WARREN, MR. F. E., 60 



Water, fresh,condenser, Normandy's, 94 

 " sulphurets. decomposable by, 211 

 Waters, mineral, zirconium in, 203 



Wax, insect, of China, 322 



Weaving shawls and carpets, 

 Whales, killing, by electricity, 116 



Whipple's Chrystalotype, 161 



White's wooden suspension bridge, 38 

 WHITTLESEY, MR. C., 270 



Why bread becomes stale, 246 



Williams' alarm water guage, 54 



W T ILSON, MR. JOHN, 174 



Wind guage, new, 182 



Window sashes, glass ornamental, 112 

 Wisconsin, antiquarian researches in, 390 

 WOHLER. M'., 203, 235 



Wood, effects of steam upon, 107 



" to prevent from warping, 106 

 Wool growing in the United States, 349 

 " " curious experiments 



in, 101 



Wootz, or Indian steel, production 



of, 204 



Zanesville, Ohio, mastodon fossil at, 310 



Zealand, New, researches in, 282 



Zimb, of South Africa, 352 



Zinc oxide as a pigment, 206 



" red, 297 



Zirconium in mineral waters, 203 



Zodiacal light, 865 



' observations on, 



THE END. 



