INDEX 



Absorption, nitrogen, 16 

 Absorption of ammoniacal salts, 



35 

 Absorption, root, 10 

 Aca«ia (see Locust tree), 90 

 Acacias, manures for, 218 

 Agronomy, 19—44 

 Ammonia, chloride of, 237 

 Ammonia, sulphate of, 236 

 Apple, ashes of, 53, 54 

 Apple trees, soUs for, 27 

 Apples, manures for, 179 

 Apricot, ashes of, 54 

 Apricots, manures for, 182 

 Arbutus, ashes of, 167 

 Ash, ashes of, 90 

 Ash constituents, 17 

 Ashes of each plant, see under the 



name of the plant 

 Aucuba, ashes of, 92 

 Aucubas, manures for, 204 

 Azaleas, manures for, 205 



Bactbeiologt of soil, 19—44, 



34 

 Barberry, manures for, 205 

 Barren soils, 47 

 Beech, ashes of, 93 

 Beech trees, manures for, 205 

 Bilberry, ashes of, 55 

 Birch, ashes of, 95 

 Birch trees, manures for, 205 

 Blackberries, manures for, 183 

 Blackberry, ashes of, 56 

 Bennett's discovery, 3 

 Box tree, ashes of, 95 

 Box trees, manures for, 205 



Castob oil tebb, ashes of, 96 

 Castor oil trees, manures for, 206 

 Chemistry of soils, 19 — 44 

 Cherry, ashes of, 57 

 Cherry trees, manures for, 183 

 Cherry trees, soils for, 27 

 Chestnut, ashes of, 58 

 Chestnut, horse, ashes of, 110 

 Chestnuts, manures for, 184 

 Chlorophyll, 12—15 

 Circulation, plant, 17 

 Classification of soils, 21 

 Clematis, ashes of, 96 

 Clematises, manures for, 206 

 Composition of fruit trees, 51 — 89 

 Composition of various trees, 90 — 



177 

 Cranberry, ashes of, 76 

 Cross-fertilisation, 161 

 Currant bushes, soils for, 27 

 Currant (Greek), 87—89 

 Currants, ashes of, 60 

 Currants, manures for, 184 



Damson, ashes of, 61 



Damson trees, manures for, 187 



Davy's theory, 5 



De Saussure's theory, 5 



Digby's theory, 2 



Discovery, Bound's, 3 



Dundonald's theory, 3 



EiNHOF and Thaer's theory, 5 



Elder, ashes of, 97 



Elder trees, manures for, 206 



Elm, ashes of, 99 



Elms, manures for, 207 



