INDEX. 



343 



Sun, physical constitution of. ... 168, 172 



" protuberances on the 315 



Sun's surface, peculiar features of. . .170 

 Sunshine, relative amount falling on 



the torrid zone 159 



Sweden, rifled small-arms of 29 



Switzerland, ancient remains of man 

 in 282 



Telegraph, Atlantic 127 



Bonelli's electric 124 



" Casselli's copying 126 



Telescope, measuring distances by. . 157 



Temperature, annealing 205 



" influence of trees on. .332 



Terra-cotta, use of for architectural 



purposes 206 



Tertiary rocks, associated with gran- 

 ite 273 



Textile fabrics in the Exhibition of 



1862 34 



Thallium, the new metal 192 



Thermometer, new application of . . . 150 



Timber, preservation of 103 



Tin-plate, waste, utilization of 209 



Titanium in steel 27 



Tobacco-smoking, physiological ef- 

 fects of 302 



Trees, influence of on temperature . .332 

 Tunnel through Alt. Cenis 43 



Vapor, aqueous, in the atmosphere, 



effects of * 136 



" atmospheric 144 



Vapors of saline solutions 211 



Vegetables, rapid growth in high 

 latitudes.. ..288 



Ventilation, Euttan's exhaustion 



principle of 147 



Venus, appearance of the earth from 322 



Vertebrate animals, smallest of. 299 



Vertebrata, red corpuscles in the 



blood of. 305 



Vessels, iron-clad, armament of. 57 



" " construction of. 53, 58 



Vesuvius, Mt., volcanic condition of 273 

 Vinegar plant, observations on the. .238 



Voice, mechanism of the human 135 



Volcanic action, influence of water 

 on 273 



War implements, improvements in. . 49 



Water, use of for fuel 236 



forms and action of. 136 



fresh, artificial production of 84 

 " influence of on volcanic ac- 

 tion 273 



" supply of the artesian wells 



of Paris 260 



Water-closets, construction of. 219 



Waves, ocean, power of 136 



Weather apd scintillation of stars. . .332 



" periodic changes in 335 



Weehawken, iron-clad vessel 62 



Well, frozen, of Brandon, Vt 261 



Wells, artesian 259, 261 



Whitworth's guns and projectiles, 



trials of. 52 



Wines, their cost and quality 212 



Wolfram steel 27 



Wood-work, ornamented by burning 99 

 Writing, prevention of effacement of, 242 



Zodiacal light .316 



