INDEX. 



415 



Samphire, 191 



Sap, 369 



Sap, Acid and alkaline . .. . .378 



Sap ascending, 379, 384 



Sap descending 382 



Sap, Composition of 376 



Sap of sunflower, 378 



Sup, Spring flow of . . . , . 370 



Sap wood, 305 



Saponification, 85 



Saxifraya crustata, 206 



Seed, 332 



Seed vessel, 330 



Seed, Ancestry of 346 



Seeds, constancy of composition 145 



Seeds, Density of 339 



Seeds, Weight of 340 



Seeds, Water imbibed by. . .399 

 Selective power of plant, . . .401 



Seminose, 65 



Sepals, 317 



Sieve-cells, 303 



Sieve-cells In pith, .... 343, 345 



Silica 134 



Silica- entrance into plant, . .402 

 Silica, Function of, in plant, . 216 



Silica in ash, 197 



Silica in textile materials, . . 200 

 Silica unessential to plants, . .197 



Silicates, 134 



Silicate of potassium, . . . .134 



Silicic acids, 135 



Silicon, 134 



Silicon, Dioxide 134 



Silk of maize, ...... .319 



Silver-grain 299 



Sinapin, 120 



Soaps, 93 



Sodium, 139 



Sodium carbonate 144 



Sodium essential to ag. plants? 186 



Sodium hydroxide, 139 



Sodium in strand and marine 



plants, .191 



Sodium oxide, 139 



Sodium sulphate, 146 



Sodium, Variations of, in field- 

 crops, 188 



Sodium Chloride, 149 



Soil. Offices of 368 



Solanin, 121 



Solution of starch in Germina- 

 tion, 358, 361 



Soluble silica, 135 



Soluble starch 52 



Species 326 



Spirits of salt, 133 



Spongioles, 257 



Spores 316 



Sports, 327 



Stamens, 318 



Starch, amount in plants, . . 51 

 Starch-cellulose, ...... 50 



Starch estimation, 52 



Starch in wood, 373, 376 



Starch, Properties of .... 47 



Starch, Test for 49 



Stearic acid, 86 



Stearin, 85 



Stem, Endogenous 290 



Stem, Exogenous 296 



Stem, Structure of 289 



Stems 282 



Stigma, 318 



Stomata, 309 



Stool, 287 



Suckers 287 



Sucroses, 39, 65 



Sugar, Estimation of 65 



Sugar, in cereals, 69 



Sugar in Sap, 377 



Sugar of milk, 68 



Sulphate of lime, 146 



Sulphate of potash, 146 



Sulphate of soda, 146 



Sulphates, 26,131,146 



Sulphates, Function of ... .210 

 Sulphates reduced by plant, . 208 



Sulphides, 26, 130 



Sulphide of potassium, . . . .130 



Sulphites 129 



Sulphur, 25, 129 



Sulphur in oat, 208 



Sulphur dioxide, . .... 25,130 

 Sulphureted hydrogen, . .26, 115 



Sulphurets, 26 



Sulphuric acid, 26, 130 



Sulphuric acid in oat, . . . .208 

 Sulphuric oxide (SO S ), .... 209 

 Sulphur trioxide (SO 3 ), . . .25, 130 



Sulphurous acid, 25, 129 



Symbols, Chemical 31 



Tao-foo, 96 



Tapioca, 51 



Tap-roots, 259 



Tartaric acid, 80 



Tartrates, 80 



Tassels of maize, 319 



Theobromin 118 



Tillering 287 



Titanic acid, 137 



Titanium, 137, 209 



Translocation of substances in 



plant, 237 



Trvpsin, 104 



Tubers, 273,288 



Tuscan hat-wheat, 158 



Tyrosin, 116 



Ultimate Composition of Vege- 

 table Matters 13, 29 



Umbelliferous plants, .... 330 

 Unripe seed, Plants from . . .338 

 Urea, 115 



Valence, 35 



Varieties, 158,326,327 



Vascxilar bundle of maize 



stalk, 291,293 



Vascular-tissue, 255 



Vegetable acids, 75 



Vegetable albumin, 90 



Vegetable casein, 94 



Vegetable cell, 243 



Vegetable fibrin, 92 



Vegetable globulins, 97 



Vegetable mucilage, 57 



Vegetable inyosins, 98 



