212 



INDEX. 



Sand, composition and properties of, 

 23. 



Sandy soils, 26. 



Seed, adulteration of, 123 ; change of, 

 124; germinating power of, 125; 

 what is good, 122; impurities in, 

 122 ; quality of, 123 ; selection of, 

 122; testing of , 125. 



Sheep, breeds of, 179. 



Sheep manure, 54. 



Shorthorn cattle, 178. 



Skim-milk, composition of, 194; as a 

 food, 195. 



Soils, absorptive properties of, 38 ; al- 

 luvial, 23 ; analysis of, 31 ; changes 

 in, 37 ; classification of, 23 ; chem- 

 ical composition of, 31 ; chemical 

 improvement of, 50 ; clay, 26 ; clay- 

 ing of, 44; constituents of, 33; 

 definition of, 18 ; drift, 23 ; efifect 

 of atmosphere on, 20; effect of 

 lime on, 24, 47, 51, 64, 67; effect 

 of growth of plants on, 21 ; effect 

 of water on, 20 ; exhaustion of, 35 ; 

 natural fertility of, 30; food ob- 

 tained from, 13 ; formation of, 20 ; 

 imperfections of, 41 ; improvement 

 of, 41, 50; inorganic substances in, 

 29 ; limestone, 27 ; loamy, 27 ; mar- 

 ling of, 44 ; movement of, 22 ; nitri- 

 fication in, 40 ; organic substances 

 In, 29; origin of, 18; peaty, 27; 

 perfect, 27 ; preparation of, 50 ; 

 sandy, 26; sedentary, 22; natural 

 strength of, 35; texture of, 36; 

 transported, 23; vegetable, 27; 

 weight of, 31. 



South Carolina rock, 86; superphos- 

 phate, 91. 



Southdown sheep, 180. 



Stable manure, composition of, 54. 



Stalks, as feed, 148. 



Straw, as feed, 148. 



Subsoil, definition of, 19 ; function of, 

 20. 



Sulphate, of ammonia, 72 ; of potash, 

 98 ; of potash and magnesia, 99. 



Superphosphates, composition of, 92 ; 

 definition of, 90 ; use of, 95. 



Swine, breeds of, 180. 



Sylvinit, composition of, 97; use of, 

 as manure, 97. 



Tankage, 75. 



Thomas phosphate meal, 88. 



Tillage, 47. 



Tomatoes, 127. 



Tuber crops, 134 ; as food, 149. 



Turnip family, 127. 



Unit System, 106. 



Values, commercial, 106. 

 Vegetable soils, 27. 



Wastes, utilization of, 61. 



Water, action of, on soils, 20. 



Wheat plant, composition of, 32. 



Wheat soil, composition of, 32. 



Whey, 195. 



Wolff's feeding standards, 158. 



Wood ashes, use and composition of, 



62. 

 Wool waste, 61. 



