INDEX 



515 



Sorghums, grass. 



Culture, 317; description, 315; ii.i- 

 portance, 317; origin, 315; sirup, 310; 

 uses, 318. 



Sow thistle, 495, 505, 506. SOS. 



Spraying. 



Potatoes, 416; weeds, 507. 



Starch, 35, 108. 



Stimulants and sedatives, 19. 



Stover, corn, 80, 253. 



Sudan grass. 



Adaptation, 320; culture, 321; descrip- 

 tion, 320; uses, 321. 



Sugar, 430, 431. 



Sugar cane. 



Characters, 431, cultivation, 434; ex- 

 tracting the juice, 435; harvesting, 

 434; making the sugar 436; planting, 

 434; production, 432; propagation, 

 432; soils and fertilizers, 433; sugar 

 content. 431. 



Sugar beet, 390. See beet, sugar. 



Sugar crops, 18. 



Sugar plants, 426. 



Sulphur, 35. 



Sunflowers, 509. 



Sunlight, 38. 



Sweet clover. 



Culture, 383; curing, 384; cutting, 

 383; description, 382; harvesting, 383; 

 importance, 382. 



Sweet corn, 49. 



Sweet potatoes. 



Cultivation, 423; description, 419; 

 digging, 424; growing the plants, 421; 

 importance, 420; origin, 419; prepar- 

 ing the soil, 422; setting the plants, 

 423; soils and fertilizers, 421; uses, 

 424; varieties, 420. 



Teosinte, 326. 



Timothy. 



Description, 201; care of meadow, 294 ; 

 harvesting, 296; importance, 292; 

 making hay, 294; origin, 291; pastur- 

 ing, 295; seed and seeding, 293; soils 

 and fertilizers, 293; value, 295. 



Toadflax, 508. 



Tobacco. 



Botanical characters, 461; composi- 

 tion, 462; cultivation, 468; curing, 

 470; diseases, 473; grading, 471; 

 harvesting, 469; importance, 462; in- 

 sects, 473; marketing, 472; origin and 

 history, 461; preparing the field, 467; 

 preparing the seed bed, 464; returns, 

 472; rotation, 473; setting the plants, 

 468; selection of seed, 473; soils and 

 fertilizers, 463; sowing seed, 465; strip- 

 ping, 471; topping, 468; types, 462. 



Translocation, 27. 

 Transpiration, 28. 

 Tubers, 17, 399. 

 Tumbleweeds, 500. 

 Turnips, 394. 

 Units of measure, 54. 

 Uses of crops, 19. 

 Vegetable matter, 36. 

 Velvet bean, 387. 

 Velvet weed, 505, 509. 

 Vetches. 



Culture, 386; description, 385, 500; 

 uses, 386. 

 Water, 38. 

 Weeds. 



Annual, 494; benefits, 498; biennial, 

 494; classes, 493; damage, 495; defini- 

 tion, 493; eradication, 502; how weeds 

 spread, 499; meadow, 508; need for 

 study, 493; pasture, 508; perennial, 

 495; roadside, 508; spraying, 507. 

 Weevil, 113. 

 Wheat. 



Acre yield, 134; breeding, 159; classi- 

 fication, 127; cost of production, 150; 

 crossing, 160; diseases, 154; distribu- 

 tion, 132; durum, 130; exports and 

 imports, 149; fanning mill selection, 

 138; fertilization, 125; flour, 153; 

 flowers, 124; grades, 147; growing, 

 136; harrowing, 141; harvesting, 142; 

 importance, 130; insects, 158; judg- 

 ing, 160; kernels, 128; leaves, 124; 

 marketing, 147; new varieties, 139; 

 nurse crops, 153; origin and historJ^ 

 123; preparing the land, 136; prepar- 

 ing seed, 138; prices, 149; production, 

 130; rotation, 152; score card, 161; 

 season of growth, 127; shocking, 142; 

 soils and fertilizers, 134; sowing, 140; 

 spring, 129; stacking, 144; storing, 

 146; threshing, 145; time of sowing, 

 140; uses, 154; varieties, 127; winter, 

 129. 

 White clover. 



Characters, 346; rotation, 348; sow- 

 ing, 347. 

 White grubs, 112. 

 Wild barley, 508. 

 Wild buckwheat, 505. 

 Wild garlic, 506. 

 Wild morning-glory, 506. 

 Wild mustard, 506. 

 Wild oats, 500, 506. 

 Wilt, flax, 233. 

 Wilting, 31. 

 Wireworms, 110. 

 Wood meadow grass, 297. 

 Yarrow, 508. 



