292 



Index. 



Cabbage caterpillar, 166; mag- 

 got, 174; club-root of, 182. 



Calcium, part played by in 

 plant, 45. 



Callus how formed, 56. 



Calyx, 96. 



Cambium layer, 53; from dif- 

 ferent plants may unite, 54. 



Carbon, proportion of in vege- 

 table material, 44; sources of, 

 in plants, 43. 



Caulicle, 33. 



Cauliflower heads to be shaded 

 from sunlight, 146. 



Caustics, destroying insects by, 

 163. 



Cell division, 15. 



Cells, guard, 50; palisade, 49; 

 some properties of, 14. 



Cellular structure of living be- 

 ings. 13. 



Chili saltpeter, 156. 



Chinch bug, 170. 



Chlorid of potash, 157. 



Chlorophyll defined, 41; forms 

 only in light, 42; iron essen- 

 tial to formation of, 45; no 

 food formed without, 42. 



Chlorophyll bodies, 42. 



Cion, 219, 221. 



Cion grafting. 221. 



Classification defined, 18; il- 

 lustrated, 19. 



Cleft grafting, 226. 



Close-pollination, 102. 



Clouds tend to avert frost 

 134. 



Clover, dodder of, 179; tuber- 

 cles on roots of, 79. 



Club-root of cabbage, 182. 



Codling moth, 176. 



Cold air drainage, 134. 



Cold, excessive, how affecting 

 the plant, 121. 



Cold-frarre. 203. 



Composite flowers, 98. 



Conditions affecting power cf 

 plants to endure cold, 122. 



Cooling the plant, immediate 

 effect of, 121. 



Copper carbonate, ammoniacal 

 solution of, 184. 



Corm, 198. 



Corn, detasseling, 263; smut, 

 180. 



Corolla, 96. 



Cotyledons defined, 35. 



Covering of seeds in planting, 

 why important, 33. 



Cracks in fruits and vegeta- 

 bles due to excessive moist- 

 ure, 140. 



Crop, affected by age of seed. 

 110; a growing, tends to con- 

 serve fertility, 159; removal 

 of, tends to reduce plant food 

 in the soil, 153; rotation of 

 economizes plant food, 158. 



Crops, trees detrimental to 

 neighboring, 59. 



Crossed seedlings, selection of, 

 278. 



Crosses, after care of, 278; and 

 hybrids defined, 20; varia- 

 bility of, 21. 



Cross fecundation, how accom- 

 plished, 276. 



Crossing, selection of subjects 

 for, 275; variation produced 

 by, 274. 



Crossings, planting with refer- 

 ence to chance 279. 



Cross-pollination, 102; advan- 

 tage of, to plants. 102. 



Cucumber beetle, 16?; screen- 

 covered frame for hills of, 162. 



Cucurbitae, provision in, to aid 

 plantlet to emerge from seed- 

 case, 33, 34. 



Cultivation tends to prevent 

 drought, 143. 



Culture, aim tf. 11; deals with 

 life, 12; defined, 10; plants 

 have improved under, 270; 

 variation produced by, 273. 



Curculio 176. 



Currant worm, 166. 



Current, evaporation of. 60; of 

 prepared food, 62. 



Cuticle defined, 49. 



