INDEX 



Accommodation, optical, 281 

 Acetylene gas, 293 

 Acids, 12 



Acetic, 13 



Citric, 12 



Hydrochloric, 13 



Lactic, 12 



Malic, 12 



Nitric, 13 



Sulphuric, 13 

 Adenoids, 61 

 Aeronauts, 156 

 Air, 6, 47, 145, 312 

 Air pumps, 147 

 Alcohol, 41, 43, 88, 89 

 Algze, 368 

 Alkaloids, 41, 419 

 Alum, 26 

 Ammonia, 14, 169 

 Amoeba, 381 

 Ampere, 251 

 Amphibians, 388 

 Animals, 381, 396 

 Anther of flower, 347 

 Apples, 375 

 Apple rust, 373 

 Aqueous humor, 279 

 Arsenate of lead, 379 

 Artificial gas, 171 

 Astigmatism, 285 

 Atmosphere, 146 

 Atoms, ii 



Bacteria, 31, 33, 315, 371 

 Baking powder, 25, 26 

 Baking soda, 24, 25, 26 

 Bananas, 350, 351 

 Barometers, 150, 152 

 Bases, 14 

 Beans, 335 



Bell, Alexander Graham, 268 

 Birds, 391 



Block-and-tackle, 192 

 Boiling, 85, 138, 226 



Borax, 38 



Bordeaux mixture, 378, 419 

 Boyle's Law, 165 

 Bread, 24, 28, 29 

 Breathing, 6, 59, 62, 91 

 Brown rot, 375 

 Budding, 354, 355 

 Burbank, Luther, 349 

 Buying food, 130 



Caffeine, 40, 41 



Calcium chloride, 94 



Calorie, 77 



Calyx, 346 



Cambium, 342 



Cameras, 273 



Camping, 139 



Cankers, 376 



Caramel, 24, 419 



Carbohydrates, 115 



Carbolic acid, 36, 37 



Carbon, 54 



Carbon dioxide, 47, 56, 57, 58 



Cattle, 394 



Cedar apples, 374 



Cells, of body, 113 



Cells, in parallel, 258; in series, 258 



Cellulose, 366 



Centrifugal pump, 218 



Chalk, 309 



Charcoal, 53, 55 



Chloride of lime, 36 



Chloroform, 45 



Chlorophyll, 345 



Cilia, 383 



Climate, 143 



Clothing, 6, 98, 363 



Cocaine, 44 



Cocoa, 41 



Codeine, 44 



Codling moth, 378 



Coffee, 40, 41 



Cogwheels, 195 



Coke, 56 



