INDEX 



285 



Scar, healing of, see Pruning. 

 Scolytus quadrispinosus, i86. 

 Scurfy scale, 176,* 180. 

 Seedling, 104. 



in nursery, 82, 83.* 



in woods, 82, 83.* 



white maple, 103.* 

 Seeds, germinating, 103.* 

 Sesia aceriii, 185. 

 Sewer, drain connecting with, loi. 



pipe tilled with roots, 23,* 26. 

 Shade-Tree Commission, 238, 254. 



in East Orange, N. J., 96, 153, 177, 

 184, 242. 



in New Jersey, 23S. 

 Shade-tree department, 233. 



nursen', 88. 

 Shade-tree laws, Massachusetts, 36, 

 ^37> 238, 239, 268-273. 



New Jersey, 236, 237, 258-264. 



New York, 236. 



principles underlying, 240. 

 Shade-trees, beneiiting entire street, 241. 



economic value, 4, 5. 



esthetic value, 2. 



moral value, 5. 



sanitary value, 3, 4. 



shipping of, 83,* 87, 88. 



source of pleasure, 3. 

 Sidewalks, concrete, 74. 



close to trees, 151.* 

 Slime-flux, 199, 201. 

 Smith, S., note 4. 

 Smoke, effect of, 13S. 

 Soap, 206. 

 Soil, amount of, 64. 



clay in, 63. 



diseases due to, 197, 198. 



humus in, 63. 



lime in, 63. 



moist and aerated, 201. 



nature and preparation, 62. 



nitrogen in, 63. 



phosphoric acid in, 63. 



poisoned by gas, 142. 



Soil, poor on street, 137. 



potash in, 63. 



preparation of, 65. 



record of kind, 62. 



renewal of, 229. 



sand in, 63. 



source of food, 105. 



suitable for trees, 63. 

 Southern States, opportunities for tree- 

 planting, 58. 

 South Orange, N. J., 238. 

 Spacing, uniformity of, 76. 

 Species, choice of, 80. 



different when replanting, 229. 



few for streets, 9, 10. 



mixture of, 231. 



one on a street, 80, 233. 



rows of different, 80. 



used in Paris, 10. 



used in Washington, 10. 

 Spirits of turpentine, 167. 

 Spiny elm caterpillar, 41. 

 Splitting of crotches, 226. 

 Spores, 117, 187, 207. 

 Sprayers, barrel hand pump, 209, 210.* 



bucket pump, 209, 210.* 



gasoline, 210,'' 211. 



liquid carbon dioxid, 210,* 211. 



nozzles, 213, 214.* 



power sprayers, 210,* 211. 

 Spraying, 238. 



apparatus, 209-217. 



hose, 212, 213. 



precautions in, 216. 



rods, 215. 

 Spring planting versus fall planting, 



91-93- 

 Springfield Gaslight Company, case 



of, 145- 

 Stag-head or top dry, 198. 



white maple, 192.* 

 Staking, 93. 



crowbar used, 94,* 95. 



how, 95. 



in Washington, 93. 



