128 



INDEX. 



Produce of food in growth, 102 

 Proportion of nitrogenous and non-nitro- 

 genous ingredients, 77 



Rain-water, composition of, 14 

 Ratio in food, albuminoid, 80 — 93 

 Respiration, 69 



Ripeness as affecting composition, 74 

 Root crops, manure for, 44 

 Roots, function of, 7—10 



— manure produced by, 114 



— range of, 55 

 Rotation of crops, 47, 50—59 



— loss during a, 57 

 Ruminants, experiment with, 79, 80 



Sale of produce, effect of, 58 



Salt, common, 9, 33 



Salt, effect on digestibility, 85 



Sand, 15 



Seaweed as manure, 27 



Season, effect of, 48, 49 



Seed, depth of covering, II 



Shallow-rooted plants, 55 



Sheep, composition of, 62, 63 



— excrement of, 113 



— food experiments, 83 

 Silica on plants, 9 



Skim milk, 120 

 Soil, 14—22 



— composition of, 15 



— weight of, 17 

 Soot, 29 



Special manuring, 46 



Starch, effect on digestibility, 85 



— composition of, 5 



Storage of food in plants, 12 

 Straw, composition of, 72 



— manure produced by, 114 

 Sulphate of ammonium, 2o 

 Superphosi)liato, 30 — 32 

 Swedes, composition of, 39, 72 



Temperature, influence on growth, 



101 

 Tillage, action of, 20 

 Timber, composition of, 2 



— water in, 1 

 Transpiration of water, 7 

 Turnips, composition of, 39, 72 



Urine, composition of, 112 



"Warmth of soils, 15 



Waste substances in drainage-water, 19 



Water in soils, 15 



— influence on food, 89 

 Weekly results of food, 102, 105 

 Weight of soil, 17 



Wheat, composition of, 38, 72 

 Wheat-bran, composition of, 72 

 Whey, 124 



Winter, influence of, 49 

 Wool, production of, 106 



— refuse, 29 



— volk of, 61 

 Work of growth, 98 



Young animals, growth of, 95 



THE END. 



BRADimRY, AONEW, & CO., PRINTERS, WHITEFRIARS. 



