298 



Inaex. 



Science and art defined, 9 ; how 

 best learned, 10. 



Scientific names, why used, 20. 



Scion, 221. 



Screens for shading plants, 145, 

 146. 



Season (or pruning, 255. 



Seed, 104 ; age of, as affecting 

 the resulting crop, 110 ; ma- 

 Uiring of, injures fodder crops, 

 105 ; plantlet visible in, 40 ; 

 production of, exhausts plants, 

 104 ; selection, importance of, 

 274 ; vigor ©f plantlet propor- 

 tionate to size of, 38 ; vitality, 

 conditions affecting duration of, 

 108. 



Seed-case defined, 23 ; infiuence 

 of on absorption of water by 

 seeds, 28 ; in germination, 33 ; 

 is useless after germination 

 commences, 33 ; plantlet may 

 need help to burst, 34. 



Seeding, prevention of, prolongs 

 the life of plants, 105. 



Seed-leaves defined, 36. 



Seedlings, pricking off young, 76 ; 

 selection of crossed, 279 ; varia- 

 tion produced by growing, 275 : 

 young. Injured by unobstructed 

 rays of sun, 145. 



Seeds absorb water by contact, 

 22 : a few germinate In water, 

 27 ; drying of, how affecting 

 their vitality, 110 ; earlier ger- 

 minating, form more vigorous 

 plantlets, 38 ; gathering and 

 storing of, 106 ; germination 



; hastened by mutilating seed- 

 case 30 ; how deep should they 

 be planted ? 38, 192 ; immature 

 vs. ripe, 107 ; in which hypo- 

 cotyl lengthens, must be planted 

 shallow, 36 ; of pumpkin fam- 

 ily should be planted flatwise, 

 34 ; rate at which they absorb 

 water, 22 ; should be tested be- 

 fore planting, 31 ; should not 

 be planted until soil becomes 

 warm, 29 ; stored, moisture an 

 enemy to, 109 ; stratification 

 of. 111 ; very small, should not 

 be covered, 39, 192 ; vitality of, 

 limited by age, 108 ; why cover, 

 at planting, 33 ; why they fail 

 to germinate, 30 ; testing, direc- 

 tions for, 31 ; tester described, 

 31. 

 Selection a means of fixing varia- 

 tions, 273 ; of crossed seedlings, 

 279 : of seed, importance of, 

 274 ; of subjects for crossing, 

 276 : principle of, 17, 271. 



Self pollination, 102. 



Sepal, 96. 



Sexual reproduction, 16. 



Shading plants after transplant- 

 ing, 252. 



Shears, hedge, 270 ; lever, 270 ; 

 pole, 269 ; pruning, 269. 



Shed screen (or shading plants, 

 145. 



Shield budding, 232. 



Shifting plants, 249. 



Side grafting, 229. 



Sifting box for applying insecti- 

 cide powders, 172. 



Slenderness. pruning for, 259. 



Slips, 215. 



Slugs, 162. 



Smut of the small grains, 182 ; 

 of corn, ISI ; of onion,- 182. 



Snails, 162. 



Sodium nitrate, 156. 



Soil, and the root, 65 ; a scene 

 of constant changes, 68 ; com- 

 pacting, about seeds hastens 

 germination, 28 ; compacting 

 wet, may prevent germination, 

 27 ; depth of roots in, 77 ; how 

 penetrated by root-tip, 70 ; 

 ideal, for land plants, 68 ; im- 

 nortnnce of organic matter in, 

 69 : needs ventilation, 69 : par- 

 ticles of dissolved by root-hairs, 

 72 : (or potting, 249 ; puddled, 

 defined, 26 ; puddled, prevents 

 germination, 27. 



Soil aeration promoted by drain- 

 age, 70 ; promotes soil fertility, 

 155. 



Species, 18. 



Specific names defined, 20. 



Spikelet, 99. 



Splice grafting, 225. 



Splitting down, to prevent 

 branches from, 263. 



Spore germination favored by 

 moisture, 186 ; prevention of, 

 182. 



Spores defined, 39 ; non-sexual, 

 16 ; of ferns, how planted, 39. 



Spraying outfit, steam, 174. 



Spray pump, 173. 



Sprinkling of plants under glass 

 to be avoided in bright sun- 

 shine, 119. 



Squash, provision in, to aid plant- 

 let to emerge from seed-case, 

 34 ; bug, 174 ; vine borer, 163. 



Stable manure, 158. 



Staking trees to prevent shaking 

 by the wind, 246. 



Slamens, 97. 



