INDEX. 



333 



naked fallows, 169. Suited to 

 different crops, 182, 199. Ef- 

 fects of cropping and manuring 

 on, 186 ; tables, 191. Princi- 

 ples for fertilizing, 194. Essen- 

 tial elements of good, 195. Im- 

 proved by planting the larch, 



196. Small-grain crops exhaust, 



197. Enriched by depasturing, 



198. Paring and burning clay, 

 210. Different species of gras- 

 ses require different properties 

 of, 212. Grasses, for different, 

 226, 233. Stirring, in time of 

 drought, 245, 288. Weight 

 of, 2S6. JMarl, necessary to 

 give one per cent, of carbonate 

 of lime, for ploughed, 292. 

 See Agriculture. 



Soil-draining, mode of, 99. When 

 resorted to, 101. 



Soiling, meaning of, 222. 



Solidity, of a sphere, 283. Expla- 

 nation of, by Lavoisier, 288. 



South America, neglect of agricul- 

 ture, and degradation, in, 265. 



Sowing, hints on, 118-120, 205. 

 Clover seed, 215. See Plant- 

 ing. 



Spain, degradation and neglect of 

 agriculture in, 10, 265. Meas- 

 urement for a degree in, 285. 

 Value of a real and dollar of, 

 296. 



Specific gravity of different bodies, 

 284, 290. 



Spheres, solidity and surface of, 

 283. 



Spiked rollers, 150. 



Sprouting seeds, 248. See Seeds. 



Square measures of length, 285. 



Stables, on making manure in, 68, 

 203. Hints on, 244, 249. 



Stagnant waters, bad effects of, 

 241, 242. 



Stall-feeding cattle, 164, 249. 



Standard, of specific gravity, 284, 

 290. Of British measures, 286. 

 Of weights, 286. 



Staten Island, manure made at a 

 farm on, 76, 275. 



Steam, cause of the elasticity of, 

 289. 



Steel, weight of, 286. 



Stirring the soil, in time of drought, 

 245, 288. 



Stock, see Cattle and Exhibitions. 



Stomach, compared to soil, 58. 

 Ordinary teniperature of the, 

 59. 



Straw, making manure from, 275. 

 See Litter. 



Strawberries, exhaustion by, 161. 



Strickland, on wheat crops, 23. 



Striking the furrows, 131, 138, 

 139. 



Strong soil, weight of, 286. 



Study, agriculture favorable to, 

 31. ^^e Mind. 



Subsistence, cost of, in Great Brit- 

 ain, 11. Dependence of, on 

 agriculture, 13. 



Subsoil-draining, described and 

 illustrated by cuts, 103. 



Subsoil plough, successful use of, 

 in clay soils, 45. 



Subsoils, retentive, 51. Porous, 

 52. On ameliorating, 52. Fer- 

 tility dependent on, 197. 



Sully, Duke of, 9. 



Sulphate of lime, 287. 



Sulphur, in turnips, 154. Effects 

 of chemical action on, 292. 



Sulphuric acid, 287. Absorbs 

 moisture from the air, 288. 



Summer fallows, 169. 



Surface of spheres, 283. 



Surface-draining, remarks on, 98. 



Surface-water, on carrying off, 

 139. 



Surveyor's chains, length of, 

 285. 



Swanberg, on degrees, 285. 



Sweden, weight and value of the 

 dollar of, 296. 



Sweet-scented vernal grass, 226, 

 239. 



Swimming substances, displace- 

 ment of water by, 290. 



Swine, see Hogs. 



Switzerland, Hofwyl Agricultural 

 School farm in, 24. 



