HINDEX.h 



Air, circulation of in leaves 249 



Alfalfa, cultivation of. 290 



Ammonia 31-70 



" absorbed by porous 



substances 70 



" dissolved by water 70 



" composition of. 71 



" how detected 72 



its combinations 72 



' absorption of by gypsum 74 

 " formation of in the soil.. 75 

 ' ' its action upon plant 



growth 76 



" sulphate of. 229 



Animal manures 196 



Anther, the 254 



Ash of plants, composition of.. .99- 102 



Ashes, wood 219 



Ashes, wood, as manure 214 



Atmosphere, diffusion of oxygen in 23 



weight of. 24-41 



" of the 40 



" motionsof. 42 



" waves of 42 



Atomic, weights 33 



Barley, cultivation of. 299 



Beans, cultivation of. 303 



Blood and flesh, dried 231 



Bones, as a fertilizer 231 



" composition of. 114 



Buckwheat, cultivation of. 301 



Cabbages, cultivation of. 320 



Carbon, its properties 17 



" how it enters into plants.. 78 



Carbonic acid, in the air 62 



" combines with 



alkalies 63 



Carbonic acid, sources of. 64 



its properties 60 



is produced by 



combustion 61 



contain' din marble 61 

 as food for plants... 61 



Calcium, its compounds 112 



chloride of. 113 



Castor oil pomace 232 



Cells of plants 237 



" contents of. 237 



" how they increase 238 



" centers of plant life 239 



Cellular fiber, composition of. 237 



Charcoal, its properties 18 



its effect on vegetation 18 

 Chemical combination, laws of.... 38 



Chlorine 117 



Chlorophyll, of plants 249 



Clay soils, improvement of. 165 



Clover, roots of 20 



cultivation of. 288 



hay, composition of 289 



Cold, lowest degree of 58 



' ' mixtures for producing 58 



Composition of farm crops 147-148 



Composts 209 



" materials for 194-210 



" composition of 210 



Corn, cultivation of. 296 



" improvement of. 297 



" for fodder 290 



Cotton, cultivation of. 308 



Cotton seed, its use as manure 232 



composition of 309 



Cow peas, cultivation of. 302 



Crops, analysis of, not a safe guide. 153 



" large, how grown 164 



" rotation of. : 278 



" for soiling 2S7 



" cultivating 188 



