nSG 



INDEX. 



Broad-leaved plants, water for, 75 

 Brooin, 117 

 Budding, 168, 175 

 Buds, to promote, 1G7 



, their convertibility, 206 



Bulbous roots, 137 



Btiming weeds wasteful, 108 



Cabbages, blind, 184 

 Calyx,^185 



, its use, 187 



Cambium, 165 



Canker, "277 



Capsule, 213 



Carbon, abundant in seeds, 40 



in plants, 82 



Carbonic acid beneficial to plants, 



93, 107, 111 

 evolved bv the stem 



and branches, 130 



quantity consumed 



by plants, 147 



— exhaled by flowers, 



190 



often the cause of 



red colours, 191 

 Carduus arvensis, 118 

 Cellular integument. 127 

 Chalk, 84 



Charcoal, its A-alue as fuel, 226 

 Charlock, 39 

 Chlorine promotes serraination, 33, 



37 ^ 



Cinnamon tree, 317 

 Clay, 84 

 Clayey soils, why germination slow 



in, 46 

 Club-root, 137 

 Coal, relative value of, 225 



. its heating power, 226 



Coal-ashes, 18, 22, 107 



Coffee, seed of, 9 



Cold, to preserve plants from, 319 



plants can exclude, 323 



Colour of soils, 18, 3 20 



Colour of leaves, 135, 149 



of flowers, 190 



of fruit, consequences. 223 



of walls, 223 



Coltsfoot, 119 



Compost, 109 



Cone, 213 



Coniferse of Mexico, 317 



Contortions, how ciired, 132 



Contraction of sap vessels, 302 



Cooling, laws of, 218 



Corn-mint, 119 



Corolla, 185 



, its use, 187 



Cortical layers, 128 

 Creeping roots, useful. 68 



bent, 119 



Crops affect different soils, S6 

 Cross-breeding, 195 

 Cucumber blossoms, 325 

 Curl in potatoes, 256 

 Cuttings, 179 



Death of plants, 309 

 Decline, symptoms of, 310 

 Decomposing matters absorb mois- 

 ture, 56 

 Decomposition of dead plants, 308 

 Depths for sovN'ing, 39, 47 

 Digging, labour required by, 61 

 Diontea muscipula, 104 

 Diseases of plants, 243 

 Double flowers most enduring, 188 

 . to obtain, 199, 204. 



208 



theory of, 210 



Drainafje, how necessary, 30, 71 



~ water, 123 



Draining, expense of, 71 

 Drilling, 58 

 Drupe,"213 

 Dungs, 89, 105 



Early and late crops, soil for, 87 

 Earths, their influence, 82 



