INDEX. 



PAGE 



Abyssinia, geography of .... 352 

 «' native races of ... . 321 



Acetylene 232 



Acid, carbolic 212 



" hydriodic 206 



" picric • . . 329 



" thymic 230 



Acoustics, new facts in ..... 179 



Africa, no bronze age in .... 365 



" south, gold tields of . . . 272 



Ainos, of Yesso 353 



Air, minute particles in . . . » .306 



" transparency of 348 



Air-gun, immense 112 



Air-treatment of wines 79 



Air-vesiclc8 of utriculariae .... 323 



Alaska, geograpliy of 351 



Albert medal 107 



Albuminuria 326 



Alcohol from wood 229 



Algeria, iron in 231 



Alimentation, defective 282 



Alloy, very hard 99 



Alloys of lead and tin 230 



" useful 100 



Aluminium bronze 99 



Amblystoma, the adult of siredon . 314 



American ordnance 109 



Amphioxus 334 



Anaesthesia, local 327 



Anaesthetics, action of, on nervous 



system 294,296 



Anatomical specimens, preserva- 

 tion of 330 



Ancestry of crustaceans .... 316 



" " insects 316 



Aniline colors 201 



" " how to remove . . 229 



" dye, new 99 



" natural 331 



Animal quinoidine 328 



" refuse, treatment of . . . 72 



Animals, drooping ears of ... . 331 



" organic progression of xi. 311 



Anthracite gunpowder 120 



Antiquity of man 356 



Antiquities of I'acific islands . . 364 

 Antiseptic treatment in surgery . 302 



Antozone 194 



Aphasia 289 



Apparatus, polarizing, new . . . 184 

 Aquatic plants, air vesicles of . .323 

 Arabian horse, a specific type . . 319 

 Archeology, prehistoric . . . xiii 



Arches, flat 33 



Architecture vs. ethnology . . . 36(5 



Arctic conifer, new 335 



" expedition, German . . . 365 

 «* " Swedish ... 366 



PAOB 



Arctic miocene flora 273 



Arcturus, spectrum of 344 



Argo, nebula in xil. 344 



Armor plate, large 106 



Armstrong gun 114 



Arsenic in bismuth 232 



Articulate language, seat of the 



faculty of 325 



Artificial gems 231 



" production of monstrosi- 

 ties 308 



" stone 55 



Atlantic storms reaching the Medi- 

 terranean 347 



Atomechanica 123 



Atomic motion 125 



" weight vs. magnetism . . 163 

 Atomized fluids, inhalation of . . 299 



Attar of rose 209 



Aurora borealis, spectrum of . . .345 



Bailey's steam engine 71 



Barometrograph 154 



Basalt of California 256 



Basins, lake 241 



Batrachians in the coal-measures . 273 

 Batteries, galvanic, new forms of . 176 

 Bees, production of sexes in . . . 33^4 



Bessemer flame 181 



" process 14 



" steel rail 37 



Bibliography 36S 



Bichloride of methylene .... 296 



Billiard balls, steel 100 



Bismuth, arsenic in 232 



Bleaching of sugar 104 



" " tissues 206 



Body, petrifaction of 330 



Boiler incrustations vs. electricity . 67 



Boilers, cast steel 70 



" steam, testing of . . . .69 



" wrought iron 70 



Bone-caves of Brazil, fauna of . . 259 



" " in Europe 360 



Bones, method of dissolving . . . 199 



Brass, coloring of 89 



Brazilian bone caves 259 



" pebbles 139 



Bridge, across the Hudson ... 44 

 " " " Mississippi . . 45 



" at Niagara Falls .... 43 



" Franz Joseph 45 



" lever 44 



" Nashville Suspension . . 44 

 " over the Mersey .... 44 

 " '• Seekonk River ... 44 



" St. Louis 42 



Bridges, iron, life of 46 



" long and short span ... 32 



