INDEX 



343 



Calcium fluoride, 20 

 nitrate, 269 



,, phosphate, 207, 215. 

 ,, in plants, 6, 116 

 Calcareous pans, 113 

 ,, sand, 33, 42 



soils, 48, 122 

 Caliche, 260 

 Canadian apatite, 209 

 Capacity for heat, of soils, 78 



,, ,, water, of soils, 60 

 Capillarity, 63 

 Carbamide, 154 



Carbo-hydrates in farmyard man- 

 ure, 315 



Carbon in humus, 111 

 ,, in plants, 5 

 ,, dioxide, absorption of, by 



plants, 15 



,, ,, in air, 15 



,, ,, in soil gases, 136 



Carnallite, 281 

 Carolina phosphate, 210 

 Caribbean phosphates, 212 

 Carrots, manures for, 199, 285 

 Castor cake as manure, 303 

 Catch crops, 301 

 Cauliflowers, manure for, 199 

 Celery, manure for, 199 

 Cellulose in farmyard manure, 



315 

 Cereals, composition of, 169, 194 



,, manures for, 195 

 Chalk, 37,43, 112 

 Chalky soils, 48, 112, 122, 257 

 Charleston phosphate, 210 

 Chemical analysis of soils, 96, 



122, 191 



,, changes due to bac- 

 teria, 141 



,, ,, in soil, 127 



,, constituents of soil, 2 



Chili saltpetre, 259 



Chlorides, effects of, on plants, 



284, 323 



,, in plants, 6 

 ,, in rain-water, 17 

 Chlorophyll in algse, 137 

 Citric acid extract of soils, 124 

 ,, ,, solvent for phosphates, 



235 

 Citrate soluble phosphate in basic 



slag, 230 

 Citrate soluble phosphate in dis- 



. solved bones, 245 

 Citrate soluble phosphate in super- 

 phosphates, 220 

 Clay, coagulation of, 86 

 ,, composition of, 36 

 ,, properties of, 33 

 ,, soils, 42 

 Classification of crops, 193 



,, ,, manures, 202 



,, ,, soils, 42 



Climate, 74 



Clover, composition of, 169 

 ,, effect of lime on, 117 

 ,, manures for, 197, 285 

 Coagulable clay, 85 

 Coal, nitrogen in, 253 

 Coherence, 33 

 Colloidal clay, 85 



hydrates, 59, 67. 85, 



106 



Colloids, 88 

 Colour of soils, 78, 83 

 Combined water in soils, 97 

 Common salt, 59, 289 

 Comparison of artificial and farm- 

 yard manures, 

 182 



,, ,, basic slag an 



superphosphate, 

 232 



