398 



ELEMENTS OF GENERAL SCIENCE 



Birds, reproduction of, 369 



Bismuth, 69 



Bladder glass, 8 



Blade of leaf, 78* 



Blizzard, 48 



Blood, circulation of, *340~342 



Blood poisoning, 95 



Boiler, 187 



Boiling, *114-119; and elevation, 



116*; and melting, 119 

 BoOtes, 276 

 Borax, 161 

 Boron, 69 

 Boston, reduction of typhoid fever 



in, 103 

 Brass, 140 



Bread in relation to bacteria, 99 

 Breathing, 361-362 

 Bromine, 69 

 Bubonic plague, 95, 112 

 Buoyancy, *135-139 

 Buoys, 158 



Caisson, 5, 6 



Calcium, 69, 268 



Calms, belt of, 54 



Canals, 154, 157, 158 



Candle, 64*, 65 



Canis Major, 273 



Canis Minor, 273 



Canning fruits, 94 



Canoe, travel by, 155-157 



Capella, 276 



Capillaries, 340 



Capillarity of soil, 297 



Carbohydrates, 81, 85, 329 



Carbon, 69, 70, 71, 70, 268, 291 



Carbon dioxide, 71-73, 81, 89, 119, 

 291, 342 



Cassiopeia, 272, 273 



Cast iron, 119 



Castor, 273 



Caves, 282 



Cells, 79, 80 



Cellulose, 82 



Centigrade thermometer, 14, 15 



Cheese-making, 95, 96 



Chemical change, 68 



Chemical terms, explanation of 

 some, 68 



Chicago, location of, 155-156 ; sani- 

 tary canal of, 168-169 ; typhoid 

 death rate in, 104, 160, 169 



Chile saltpeter, 293 



Chimneys, 19 



Chlorine, 69, 268 



Chlorophyll, 81, 88* 



Chloroplasts, 81 



Choke damp, 73 



Cholera, 95 



Chromel, 197 



Chromium, 69 



Chrysanthemum, 890* 



Circulation, *340-342, 361 



City block, a crowded, 98* 



Clay, 289, 290 



Cleanliness and disease, 107 



Cleveland, Ohio, 142 



Climate, effect of, on life, 378-379 ; 



of the moon, 248 

 Climatic influences of water, *141- 



151 



Clock, 184* 



Clouds, cumulus, 27*, 49 

 Coal, 140, 191 

 Cobalt, 69 



Codfish, overproduction of, 876 

 Coffee, 345, 351 

 Cold storage, 122-123* 

 Cold waves, 47, 48 

 Columbus, Ohio, 142 

 Comets, 261-263 

 Commutator, 235, 238 

 Compass, 225* 

 Compounds, 68-74 

 Compressed air, 4 ; uses of, 4, 6 

 Compression tank, 171* 

 Concordia, Kansas, 142 

 Condensation, 22 

 Connections, series and parallel, 



203*, 204 



Constellations, 270 

 Convection currents, 16, 192 

 Cooling effects of evaporation, 120- 



122 



Cooling of land and water, 147 

 Copper, 69, 119, 140, 268 

 Copperplating, method of, *217- 



219 



Cork, 140 



Corn, overproduction of, 875 ; pro- 

 gressive breeding in, 390-393 

 Cost of operating electric heating 



devices, 212 



Craters and erosion, 247 

 Craters on the moon, 247* 

 Culex, 109*, 112 

 Currents, direct and alternating, 



288-241 

 Cyclones, 42-46 



