INDEX 



543 



Carbon, monoxide, 159-160 



tetrachloride, 139 

 Carbon dioxide, 171 



amount exhaled, 171 



in cooking, 233, 234, 235, 236 



Dewing test for, 177, 178 



disposal of, in air, 186 



effect of on body, 176 



measurement of, 177 



not injurious, 176 



removal from body, 184 



required by plants, 187 



source of, 171 

 Carbon tetrachloride, 139 



for cleaning, 268 



for fire extinguishers, 139 



disease, 49 

 Cassiopeia, 480 

 Castor, 483 

 Cells, dry, 409 



wet, 408 



storage, 409 

 Cellulose, 194 

 Cementum, 222 

 Cetus, 483 

 Chance taking, 504 

 Chicory, detection of, 242, 243 

 Chimneys, 105 



draft in, 105 

 Chlorophyll, 186 

 Choroid membrane, 358 

 Chilly feeling, cause of, 9 

 Chronometer, 456 

 Cilia of eye, 359 

 Cisterns, 283 

 Cleaning, 268 



of fabric, 268 

 Clothes, wearing of, 9 

 Clouds, forms of, 26, 27, 28, 29, 30, 31, 

 32,33 



prediction of weather by, 79 

 Club root, 314 

 Coal, products from, 146 



gas, 146 



Coal, charts of products, 145 



cannel, 164 



anthracite, 164 



bituminous, 164 



peat, 164 



resources of world, 165 



mine, 165 



Coal tar dyes, in milk, 229 

 Coffee, 242 



percolator, 86 

 Cohesion, 443 

 Colds, 298 



how contracted, 299 



cause of, 9 

 Color, blindness, 380 



due to iron compounds, 137 



in printing, 380 



of walls, 369, 370 

 Combustion, spontaneous, 137 



slow, 137 



rapid, 137 

 Comets, 477 



Community, for the good of, 303 

 Compass, 455 

 Constellation, 477 

 Conduction, 94 



difference between convection, 94 



in different substances, 95 



in clothing, 100 



questions on, 98 



table of, 96 

 Conductors, poor, 97, 98 



table of, 96 

 Conduits, 388 

 Connections, gas, 154 



metal, 154 



hose, 154 

 Conjuctiva, 359 

 Convection, 100 



in clothing, 100 



convection and radiation, 103 



experiment to show in air, 102 



heat room by, 103 



in kitchen boiler, 111 



