INDEX 



471 



Rape, 402 



Raphanus sativus, 392 



Reflection of light by greenhouse, 72 



Refrigeration-car service, 98 



Rheum rhapontictim, 403 



Rhubarb, 402-405 



botany, 403 



cultivation, 404 



distance to plant, 403 



forcing, 404 



harvesting, 405 



marketing, 405 



propagation, 403 



soil, preparation of, 403 



storage, cold, 104 

 Ridge, direction of greenhouse, 76 

 Ridge and furrow type of greenhouse 



construction, 75 



Roof of greenhouse, pitch of, 75 

 Root, 9 



cellars, 82 



and storage houses, 82 

 for the farm, 85 



functions, 10 



tissue, 10 

 Rotation of crops, 4 



Salsify, 406 



botany, 406 



culture, 406 



harvesting and marketing, 406 

 Salting cucumbers, 255 



station, 255 

 Sea kale, 406, 407 



botany, 406 



cultivation, 407 



harvesting, 407 

 Seed drill, illustrated, 313 

 Seed sowing, 35 

 Setting plants in the field, 38 

 Shipment, cooperative, 91 



first all-rail, 94 



of mixed cars, 99 



preparing crops for, 92 

 Soil, 19 



air of, 19 



and exposure, 8 



artificial means of modifying, 34 



early and late, 8 



preparation, 27 

 time of, 22 



sterilization, 23, 24, 25 

 advantages of, 26 

 Shamel soil sterilizer, illus- 

 trated, 25 



water-holding capacity of, 32 

 Solanum commersonii, 344 



integrifolium, 261 



Solanum 



melongena, 260 

 tuberosum, 343, 421 

 Soy, or soja, beans, 124. See Beans 

 Spike-tooth harrow, 30 

 Spinach, 407-412 

 cultivation, 410 



cultivators, illustrated, 411 

 distribution, 407 



drill, illustrated, 409 

 enemies and diseases, 411 

 fertilizer distributor, illustrated, 409 

 harvesting, 412 

 illustrated, 408 

 planting, 412 

 rust, 412 

 soil, preparation and cultivation, 



408 

 thinning, or spooning out, 410 



illustrated, 410 

 Spinacia oleracea, 408 

 Spray outfits, illustrated, 15 

 Sprinkler system of irrigation, 50 

 Squash, 413-420 



and pumpkin, 414 

 botany, 413 

 cultivation, 415 

 distance to plant, 415 

 distribution, 414 

 flowers, illustrated, 413 

 harvesting, 417 

 insect enemies, 416 

 squash bug, 416 

 vine borer, 417 

 marketing, 418 

 storage, 420 



house, illustrated, 418 

 varieties, 420 



Hubbard, illustrated, 420 

 Summer crookneck, illus- 

 trated, 419 

 Stable manure, 49 

 Starch, 1 1 

 Stem, its function, 10 



of a plant, 10 

 Sterilization of soil, 23-24 

 Stock beets, 1 58 

 Stomates, II 



Storage house, frost-proof, 86 

 Storage pit aboveground, illustrated, 83 



Southern, 86 

 Stoves for heating cars, Michigan style, 



370 

 Striped squash, or cucumber beetle, 



416 



Structures, forcing, 55 

 Subirrigation, 52, 80 



greenhouse beds, 80 



