INDEX 



461 



Cell parenchyma, of leaf, 198,* 199*-202,* 

 337,* 338,* 344,* 345.* 



seed, 65.* 66. 



- stem, 227 * 231* 232 * 233, 236,* 



257, 258, 328, 333.* 



- root, 120,* 121. 



pits in wall of, 227,* 229, 232,* 233, 234,* 



235. 



protoplasm of, 65,* 66, 290, 291.* 

 sclerenchyma, 224,* 225,* 227,* 231,* 232,* 



236,* 266. 267,* 268. 

 starch in. See Starch, 

 strengthening, 224,* 225,* 227,* 231,* 232,* 



236,* 266, 267,* 268. 

 structure of, 65,* 66. 

 water in, 64, 123, 124, 208, 209. 

 wood-, 120,* 121, 198,* 199,* 224*-227,* 

 228-231,* 232*-234,* 235, 236*-237, 238*- 

 240,* 341. 



Cell-wall, 64, 65,* 66. 

 Cellular structure. See Histology. 

 Cellulose, 65,* 66. 



decomposition of, 381. 



Centrifugal force, effect of, on direction of 

 growth of stem and root, 92, 93,* 94. 

 Century Plant, protection of, against 

 animals, 222, 334. 



protection of, against drying hy epider- 



mis, 333. 



seed formation of, 314. 



storage of food in, 260, 286. 



storage of water in, 334, 335. 

 Ceratophyllum. See Hornwort. 

 Cereals in crop rotation, 160. 

 Charcoal, 372. 



Checkerberry. See Partridge-berry. 



Cheese, 377. 



Chemical action due to light, 182,* 184,* 185, 



195, 196, 201, 316. 364, 382. ' 

 - in the plant, 166-177, 182-196, 253, 254, 



258, 259, 314-316. 



soil, 125, 139-153. 



soil-formation, 109. 

 . See, also, Respiration. 



Chemotropism, 293, 294. 

 Cherry, evergreen, 415. 



flavor of, 288.* 



lenticels of, 278. 



protection of, against drying, 214. 



Cherry, seeds of, distributed by birds, 325. 

 Chestnut, on poisonous plants, 222. 

 Chestnut, leaf mosaic of, 219.* 



protection of fruit of, 320. 



wood of, 230. 

 Chicago, sewage of , 382. 

 Chickory, flowers of, attract bees, 299. 



protection of root of, 162. 

 Chili saltpeter. See Sodium nitrate. 

 Chloride of lime. See Lime chloride. 

 Chloroform in testing for fats and oils, 



165. 

 Chlorophyll absorbs carbon dioxide, 202. 



cannot form in cold weather, 354. 

 darkness, 185. 



decomposition of, causes autumnal 

 colors, 332. 



effect of light on. 184,* 185. 



function of, 185, 201. 



in stem, 278. 

 Chlorophyll -granules, 198,* 199,* 200, 201, 



202.* 



Cholera, 371-373,* 376, 380. 

 Chrysanthemum, sports of, 420. 

 Cichorium. See Chickory. 

 Cinnabar, injection of wood with, 237. 

 Cinque foil, hairy covering of leaf, 213, 334. 



protection of, against drying, 334. 



protection of, against animals, 223. 

 Cistus, protection from drying, 334. 

 Clay, burning of, 106. 



burned, benefits puddled soils, 129. 



composition of, 106, 107. 



fixes ammonia, 145, 147. 



dung liquor, 145. 



plant-foods, 145. 

 flocculated by lime, 152. 



is impervious to water, 125. 



lifts water higher than sand does, 118. 



microscopical examination of, 106. 



percolation in, 113. 



plant-food in, 106. 



properties of, 106. 



richer in plant-food than sand is, 146. 



size of particles of, 106. 



water-holding capacity of, 132. 

 Clay loam, 108. 

 Clematis, climbing of, 270, 271.* 



dispersal of seeds of, 322.* 



