324 



HORTICULTURE FOR SCHOOLS 



Sulfur, atomic, for red-spider con- 

 trol, 242 

 a fungicide, 251 



Sulfuring of fruits and vegetables, 

 294 



Sultana grape, 221 



Sultanina grape, 221 



Summer pruning, 136 



Sunshine and fruit, 119 



Super-phosphate, 132 



Swamp lands, drainage of, 154 



Sweet potato, 98 



Tannin, extract of, a by-product, 291 

 Tap-roots, 21 



Telegram, examples of, in market- 

 ing oranges, 285 

 Temperature, effect of, 52 



for seed storage, 45 



its relation to decay, 268 



optimum for germination, 47 

 Tent-caterpillar, 234 

 Terminal buds, 28 

 Termite, 231 

 Testa, 40 

 Thinning of fruit, 140 



vegetables, 89 



Thistle, dissemination of seed of, 44 

 Thomas slag a source of phosphorus, 



132 



Thompson's seedless grape, 221 

 Tile drainage for alkali, 152 

 Tillage of bearing orchards, 127 

 Tomato, 112-113 



-worm, study of, exercise, 244 

 Tongue-grafting, 78 

 Tools, vegetable, 90 

 Top-budding, 77 

 Topping budded trees, 75 

 Touch-me-not, dissemination of seed 



of, 44 



Tracheal tube, 24, 25 

 Transpiration, exercise in, 37 



in leaf, 31 

 ranspianting, 51 

 T vegetables, 88, 115 



Transportation of fruit, 267 



stage, 260 

 Trees, growing portions of, 36 



selection of, 122 



use of in landscape-gardening, 



299 



Trench for planting cuttings, 66 

 Truck-crops, injury by insects, 



223 



Trunk of grape, 217 

 Tuber, 64 



crops, 92 



cuttings, 58 



Tubercles on legumes, 109 

 Tuberosum, 5 



Turgidity, exercise to show, 37 

 Turgor in the cell, 19 



in leaf, 31 

 Turnips, 99 

 Twig-budding, 75 

 Tying of bud, 74, 75 



Uncompahgre project, 144 

 Utah, irrigation in, 143 



Vacuoles, description of, 19 



illustrated, 17 



Van Teighen cell, illustrated, 166 

 Variation, forms of, 12 



of plants, 7, 8 

 Varieties, numbers of, 3, 4 

 Vascular bundles, 24-26 

 Vegetable-growing, 3, 86 

 Vegetables, study of, exercise, 115 

 Veneer-budding, 76 



-grafting, 81 

 Viability of seeds, 46 

 Viburnum Opulus, 304 



Tinus, 304 

 Vinca minor, 307 

 Vinegar, manufacture of, 291 



quick method, 292 

 Vines, use of, 302 

 Virginia creeper, 302 

 Vitis vinifera, 215 



