SOILS, analysis of, 234. SORGHUM, stalks of, 43. SORREL, 125, 232. SOUTH, 25; inviting immigration, 26; the inducements she offers, 26-7-8, 178, 311. SOUTH AMERICA, 200, 206. SPAIN, 86, 237. SPANISH AMERICA, 172. SPRING, 67, 70, 73, 75, 76, 78, 81, 87, 88, 99, 111, 126, 127, 134, 135, 136, 137, 140, 141, 150, 168, 171, 173, 174, 193, 194, 202, 258, 303, 319. SPRUCE, 223. SQUASH, 226, 264. STARK COUNTY, Ohio, 110. STEAM IN AGRICULTURE, cultivation by, 37; application of steam to plowing, 95. STEAM IN AGRICULTURE, chap. xli, 241; farmers have been slow in utilizing the natural forces around them, 241; evidence thereof, 242; steam as a source of power is hardly a century old, 242; the revolution it has effected, 242; it will effect still greater, 243; steam has contributed very little to preparing the soil, 243; disappointments of inventors of steam plows, 243; steam plowing in Louisiana, 243; steam plows in Great Britain, 243-4; the locomotive that is needed for steam plowing, 244; the saving it would effect, 244-5; American reapers in England, their value appreciated, 245; need for a machine to plow rapidly demonstrated, 246; recommendation of a German observer regarding plowing, 246; irrigation will become general, 247; the locomotive referred to above could be used for sinking wells, 247; steam plowing in England, 283-4-5. STEAM PLOWS. _See_ STEAM. STEEL, 242. STEUBEN COUNTY, N. Y., 105. STONE--STONE ON A FARM, chap. xxxvi, 213; formation of the earth, 212; diffusion of stones over the surface, 213; these are sometimes a facility, but oftener an impediment to efficient agriculture, 213; no rock on the surface of the great prairies of the West, and a portion of the valleys and plains of the Atlantic slope, 213; advantages and disadvantages thereof to the pioneer, 214; less use for stone now than formerly, 214; the stone on Eastern farms to be yet utilized, 214-5; very stony land should be planted with trees, 215; rough, unshapen stones will be more and more used for building, 215-6; instructions for building a barn partly with stone concrete, 216; its advantages, 216; blasting out stone considered, 216-7; the mode a lumberman employs to remove rocks in creeks, 217; the author's experience regarding the fencing of his farm, 218; his stone walls, 218. STONES, 249. STRAWBERRIES, 16, 90. SUGAR, production of, from the beet, 180; maple, 19, 314. SULPHUR, 104. SUMMER, 47, 59, 64, 67, 78, 83, 84, 86, 88, 99, 103, 124, 126, 130, 154, 173, 178, 189, 190, 191, 202, 260, 264, 279, 288. SUPER-PHOSPHATE, 174. SUSQUEHANNA, the, 279, 292; the valley of the, 317.