INDEX 



483 



Carbon dioxide, 57-58 



freed by baking powders, 149-15^ 



freed by fermentation, 155 



in fire extinguisher, 61 



plant food, 59-60, 440-441 



preparation of, 60-61 

 Carburetor, 318 

 Cast iron, 175 

 Catarrh remedies, 193 

 Catsup, 116 



Caustic soda, uses of, 135, 138, 139 

 Caves, 358-359 

 Cells, battery of, 210 



dry, 209 



voltaic, 207-209 

 Cells of body, 69 



built up by protein, 71-72 

 Cellulose, 87-88 



in digestion, 96 



in wood, 139 

 Cement, 181, 421-422 

 Centigrade thermometer, 19 

 Central heating plant, 23 

 Chalk for silver cleaning, 147 

 Charcoal, 62-64 



as filter, 62 



preparation of, 63-64 



uses of, 62 

 Chemical change, 66 

 Chemicals, 140-143 



as substitutes, 97-104 

 Chemistry in the household, 138- 



139 



Chewing, 92-93 

 Chickens, 463-464 

 Chills, 43 

 Chimneys, for furnaces and stoves, 21- 



23 



for lamps, 276, 277 

 Chloride of lime, bacteria killed by, 200 



in bleaching, 160-161 

 Chlorine, for bleaching, 159-162 



how obtained, 159 

 Chlorophyll, 269, 441, 442 

 Clams, 471-472 



CLARK INTRO. TO SC. 31 



Clarinet, 287 



Climate, and geographic environment, 

 3937396 



and winds, 402 



influenced by water, 35, 45-46 

 Clothing, adulterants of fabrics, 135- 

 136 



cotton, 129-133 



fur, 136-137 



leather, 137 



linen, 131-133 



mixed goods, 134-135 



silk, 133-134 



wool, 129-131 

 Clouds, 42 

 Clover, 426-427 

 Coal, 119-123 



anthracite, 119 



ashes, 123 



bituminous, 120 



choice of, 121-122 



coke, 122 



formation of, 119 



graphite, 120 



heating power of, 128 



peat, 119 

 Coal gas, 122-123, 126-127 



tarnishes silver, 123 

 Coal oil, 123-125 

 Coal tar dyes, 138-139, 169 



in foods, 103-104 

 Cocaine, 193 

 Cogwheels, 304-306, 312 

 Coke, 122 



Cold storage, no-Ill 

 Colon bacteria, 115 

 Color, cause of, 272 



matching of, 274 



primary and complementary, 273 



spectrum, 271272 



Coloring matter, action of light upon, 

 262 



coal tar, 103-104 



in foods, 103-104 



vegetable, 103-104, 138, 168-169 



