290 



INDEX 



Calcium carbonate — continued. 



Removed in drainage waters, 238. 

 Carbohydrates, in root crops, 96. 



Required for fixation of nitrogen, 140. 

 And fat in animals, 247. 

 Carbon, accumulation of, in Rothamsted 

 soils, 139. 

 In plant, source of, 1. 

 In Rothamsted soils, 28. 

 Cellulose dissolved during malting, 265. 

 Centaurea nigra, 155, 160, 181. 

 Chalk, eifect of on grass land, 158. 



In Rothamsted soils, 2S, 140. 

 Changes in herbage following changes 

 in manuring of grass land, 168, 170, 

 261. 

 Chlorine in rain, 19, 21. 



In drainage water, 233. 

 Clay-with-flints, 24. 



Clover, accumulation of nitrogen by, 8, 

 137, 147. 

 Continuous growth on garden soil, 144. 

 Effect of, on succeeding crops, 200, 



207. 

 Experiments on, 141. 

 Grown in rotation, 194, 200. 

 Sickness, 133, 148, 194. 

 Compensation tables for purchased 



foods, 257. 

 Competition of grasses, etc., in meadow, 



153, 162, 171. 

 Composition of, animal carcasses, 250. 

 Mangel crop, 115. 

 Rothamsted soil, 27, 145, 214, 222. 

 Wheat flours, 268. 

 Condiments in cattle feeding, 258. 

 Condition of land, 90, 212. 

 Continuous barley, maintenance of yield, 

 72. 

 Oats, 92. 

 Root crops, 95. 



Wheat, maintenance of yield, 36. 

 Cytase in malt, 265. 



D 



Dactylis glomerata, 162, 175. 

 Denitrification, 115, 210, 219. 

 Diastase in malt, 263. 

 Diffusion of nitrates in soil, lack of, 228. 



Diminishing returns, law of, 46, 102, 

 Drain gauges, 15, 22, 229. 

 Drainage water, compositioii of, 237. 



Losses in, 50, 232. 



Nitrates in, 229. 

 Drains in Broadbalk field, 231. 

 Drought of 1870, 163. 

 Dry matter in mangels, 116. 

 Dyer, B. , analysis of Rothamsted soils,. 

 27, 54. 



E 



Ensilage, experiments on, 266. 

 Evaporation of rainfall, 22. 



F 



Fallow, accumulation of nitrates during, 

 63, 222. 

 Effect of, on wheat, 62. 

 And leguminous crop in rotation, 200. 

 Farmyard manure, accumulation of, in 

 soil, 220. 

 Effect on barley, 77, 85. 

 Effect on grass land, 156, 165. 

 Effect on potatoes, 125. 

 Effect on wheat, 39, 55. 

 Losses of nitrogen in making, 256. 

 Recovery of nitrogen of, 54, 113. 

 Residues left by, 78, 156. 

 Value for mangels, 97, 108. 

 Fat formed from carbohydrates, 247. 



In fattening animals, 250. 

 Fattening animals, change in composi- 

 tion of animals during, 252. 

 Food required by, 248. 

 Feeding experiments, 240, 258, 264, 267. 

 Feeding roots on the land, effect of, 206. 

 Fertility of land, maintenance in equi- 

 librium, 39, 212, 221. 

 Festuca ovina, 154, 157, 158, 175. 

 Fixation of nitrogen, by bacteria, 140, 

 210. 

 By leguminous plants, 11, 143, 159, 



200. 

 Experiments on, 6, 8, 13. 

 Flour, food value of different grades, 270. 

 Food value, of malt, 261. 

 Of sewage-irrigated grass, 261. 



