228 



INDEX. 



Rothamsted, permanent pasture, 



experiments at, 174 

 superphosphates at, 166 



SAND, micaceous, 32 

 mechanical effect of, 32 



silicious or quartzoze, 31 



Soils, as a laboratory, 39 



chemical properties of, 26 



" condition " in, 47 



conditions of fertility in, 



4042 

 constituents of clay, 30 



- fertile, 29 



geological position of, 54 



gradation of, 33 



indications of fertility, 43 



50 

 insoluble part, 29 



- origin of, 20, 27 



proximate constituents of, 



28 



- soluble part of, 28 



structure of, 24 



use of stones in, 37 



Stones, their use in soils, 37 

 Subsoiling and trench ploughing, 

 108111 



Subsoils, chalk, 53 



effect of cropping on, 51 



indications of fertility in, 52 



influence of drainage on, 52 



rocky, 53 



top dressing, 53 



Syllabus of crop cultivation, 140 



TEACHER of Agriculture, functions 



of, 19 

 Tillages, standard for calculating 



cost of, 216, 217 

 - cost of, 221, 222 

 Trifolium incarnatum, 138 



VALUE of land, 88 



of oat straw, 196 



Vegetable matter, a source of car- 

 bonic acid in soils, 36 



effect of, in texture, 37 



in pastures, 35 



in soils, 35 



oxidation of, 36 



WARPING, 113 



Wheat after clover, 196 ; cost of, 



222 ; profit of, 223 

 after roots, 196 



THE END. 



Richard Clay <& Sons, Ld., London & Bungay. 



