INDEX 



PAGE 



Absorption of gases by solids . . 184 



Accelerating cannon 112 



Acetylene 185 



Air carried by falling bodies . . . 127 

 " temperature of lower strata 



of 305 



" transparency of 305 



Albert Medals, of Society of Arts . 124 



Alcohol from wood 96 



Aluminium, new properties of . . 192 



Amalgamation of gold 75 



Amalgamator, new 62 



America, at the Paris Exposition 3, 97 



" Russian 307 



American cannon .... 108, 110, 120 



" industry 97 



Anaesthetic, new 258 



Anatomical specimens, new way of 



preparing 260 



Aniline dyes 90 



" easy mode of producing .211 



Animal electricity 243 



Animalcules in snow 281 



Annelids, boring in limestone . . 270 



Antiquities, Assyrian 311 



Antiquity of man 308, 317 



Antiquity of organic life . . 225, 282 



Antozone 200 



Ape, compared with man .... 268 

 Armies of the war, composition of 323 

 Artesian wells in the desert ... 97 

 Articulation, taught to deaf mutes . 241 

 Artificial digestion 247 



" milk, Liebig's .... 246 



" stone 45,46 



Ash, from furnace flue, microscopi- 

 cal examination of 178 



Asphalt pavement 85 



Assyrian antiquities 311 



Asteroids, diameter of 295 



Atlantic cable, velocity of current 



in 172 



Atmospheric action 234 



Attrition of coins 320 



Aurora, rosy 303 



Australian trees 275 



Axolotl, a larval salamander . . 267 



Barograph . . 147 



Barometer 148 



Battery, Bunsen's improved . . . 172 



Gatling's, 115 



new form of 171 



" new, sand, 158 



" Ridgway's 117 



Bauxite 218 



Bayonet wounds . 259 



Beer, effect of freezing on ... 211 

 Berlin ware, composition of ... 98 



PAGE 



Birds, plumage of, in relation to 



kind of nest 264 



Birkhols' metal 74 



Bitumen, prints in 145 



Blanching of the hair 237 



Blast, hot and cold 73 



Bleaching process 98 



Blood, coagulation of 246 



Blood corpuscles, effect of elec- 

 tricity on 277 



Boiler incrustations 62 



" cast iron 8, 59 



" explosions of 58 



" Harrison 59 



Hick's 61, 



" locomotive, improvement in 99' 



" Miller's 60 



Boilers, overheated 56 



Boring in limestone by annelids . 270 



Bos longifrons 282 



Boundou poison 256 



Breech - loading rifles, conversion 



into . . 123 



" " " trials of . J21 



Brewster's neutral point .... 135 

 Bridge, American lattice .... 29 

 " at Cincinnati, over the Ohio 



River 31 



" at Louisville, across the 



Ohio River 30 



" from New York City to 



Brooklyn 31 



Bridges, great 32 



Bronzed cast iron 73 



Bullet detector, magnetic . . . .170 

 Bunsen battery, improved . . . 172 



Calabar bean 256 



Calamites, aflinities of 280 



Calculus, chemical 9 



California quicksilver 323 



Canada, flora of 231 



" gold in . . . . . . . .230 



Canal, Suez 32 



Canals, great, contemplated ... 33 



Cannon, accelerating 112 



American . . .108,110,120 



" heavy, trial of 119 



" large 120 



" strength of 112 



Caramel colors 195 



Carbolic acid . . . 180, 250, 253, 254 

 Carbon, tetrachloride of .... 258 



Carbonized paper 210 



Cast-iron steam boilers .... 8, 59 



Cats and civilization 311 



Cell-formation, chemical theory of 237 



Cement, to fasten iron and stone . 45 



" new . 48 



326 



