Index. 



301 



Soil- 

 solved by root-hairs, 72; for 

 potting, 248; puddled, defined, 

 26; puddled, prevents germi- 

 nation, 27. 



Soil aeration promoted by 

 drainage, 70; promotes soil 

 fertility, 155. 



Species, 18. 



Specific names defined, 20. 



Spikelet, 99. 



Splice grafting, 224. 



Splitting down, to prevent 

 branches from, 262. 



Spore germination favored by 

 moisture, 185; prevention of. 

 181. 



Spores defined, 39; non -sexual, 

 16; of ferns, how planted, 39. 



Spraying outfit, steam, 173. 



Spray pump, 172. 



Sprinkling of plants under 

 glass to be avoided in bright 

 sunshine, 119. 



Squash, provision in, to aid 

 plantlet to emerge from seed- 

 case, 34; bug, 173; -vine 

 borer, 163. 



Stable manure, 158. 



Staking trees to prevent shak- 

 ing by the wind. 245. 



Stamens, 97. 



Starvation of roots, 63. 



Stem and root development de- 

 pendent on number of leaves, 

 83. 



Stem defined, 79. 



Stem, fastest elongation of, 82; 

 how lengthens, 81; root origi- 

 nates in, 65; vital part of 

 woody, 55. 



Stem cuttings, 211; how plant- 

 ed, 212; proper length of, 212. 



Stems, how they increase in 

 diameter, 54; underground, 80. 



Stigma, 97. 



Stimulative pruning, 262. 



Stocks for grafting, 225. 



Stockiness, pruning for, 258. 



Stoma defined, 50. 



Stomata defined, 50. 



Storage of cuttings, 210; of re- 

 serve food, 64. 



Stratification of seeds, 111. 



Strawberry, perfect and im- 

 perfect flowers of, 103. 



Strength, pruning for, 260. 



Striped cucumber beetle, 162. 



Subjects for crossing, selection 

 of, 275. 



Style. 97. 



Suckering defined, 253. 



Sulfate of potash, 157. 



Sulfur, part played by in 

 plants, 45. 



Sun heat injurious to young 

 seedlings, 145. 



Sun-scald, 120. 



Superphosphate, 157. 



Symbiosis, 154. 



Table for computing dew point, 

 133; showing duration of seed 

 vitality, 108; showing germi- 

 nating temperatures of seeds, 

 26. 



Tarred-paper cards, tool for 

 cutting, 175. 



T-Budding, 2al. 



Temperature as affecting plant 

 growth, 118; fatal to proto- 

 plasm, 119; influence of on 

 absorption of water by seeds 

 23; methods of controlling, 202. 



Tenderness defined, 13. 



Terminal buds, pinching of, ef- 

 fect on wood maturity, 128; 

 destructi'on of, by cold, 124. 



Theory of evolution, 21. 



Thermal belts, 135. 



Thinning fruit, 105, 263. 



Time, most favorable for trans- 

 planting, 236. 



Tobacco, broom rape of, 178; 

 decoction of, for destroying 

 aphide. 167; smoke for de- 

 stroying insects, 167; fluid 

 extract of, 167; topping,- 253, 

 263; -worm, 163; frenching, 

 139. 



