294 



INDEX 



Sugar — continued. 



In mangels, 115. 



In sugar beet, 129. 

 Sulphuric acid in rain, 21. 

 Sunshine records, 17. 

 Superphosphate, effect on grass land, 

 160. 



Effect on turnips, 120. 

 Swede turnips, 119. 



Grown in rotation, 192. 



Importance of phosphatic manures, 

 120, 196. 



Specially dependent on manure, 193. 



Temperature records, 17. 



Texture of the soil as affected by manure, 



95, 97, 108, 120, 134. 

 Thaer's hay values, 240. 

 Torula on mangels, 103. 

 Trifolium pratense and repens, 141, 159, 



177. 

 Turnips, Norfolk white, 94, 119. 



Swede, 95, 119, 192. 



u 



Unraanured plots, 37, 72, 154, 192. 

 Uromyces betae, 103. 



Variety tests of wheat, 66. 

 Vergil on enriching effect of leguminous 

 crops, 10. 



Vertical movement of nitrates in soil, 



228. 

 Vetches, 141. 

 Voelcker, analyses of drainage waters, 



237. 

 Nitrogen in clover crop, 10. 



w 



Warington on nitrification, 217. 



On denitrification, 219. 

 Way, experiments on sewage, 260. 

 Weeds, accumulation of, 32, 41, 63. 



Competition of, with wheat, 41. 



Sign of impoverishment in grass land, 

 154. 

 Weight, per bushel of barley, 84, 89. 



Wheat, 55. 

 Wheat, allowed to run wild, 41. 



And fallow alternatelj-, ^Yi. 



And fiour, 268. 



Effect of winter rainfall on yield, 60. 



Experiments on, 31. 



Grown continuously, 36. 



Grown in rotation, 65, 193. 



Valuation of crop, 55. 



Variety tests, 66. 

 White bread, food value of, 270. 

 Wild vegetation, after clover and beans, 

 137. 



After wheat, 41. 

 Winogradsky, on nitrification, 218. 

 Winter rainfall, effect of. on wheat, 60. 



Effect on fallowing, 64. 

 Woodward, description of Rothamsted 



soil, 24. 

 Work in relation to nitrogenous food, 

 245. 



