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 



Sap, Spring flow of 370 



Sap wood, 305 



Saponification, 8S 



Saaiifraga orustata, 206 



Seed 332 



Seed vessel, 330 



Seed, Ancestry of 346 



Seeds, constancy of compositionl45 



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 textUe materials, . . 200 

 Silica unessential to plants, . .197 



Silicates, . . , 134 



Silicate of potassium 134 



Silicic adds 135 



Silicon, 134 



Silicon, Dioxide 134 



Sills: of maize 319 



Silver-grain, 299 



Sinapln 120 



Soaps, 93 



Sodium 139 



Sodiom 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 363 



Solanln 121 



Solution of starch in Germina- 

 tion, 368, 361 



Soluble silica, 135 



Soluble starch, .52 



Species, 326 



Spirits of salt 133 



Spongloles 257 



Spores, -. . . . .316 



Sports 327 



Stamens 318 



Starch, amount In plants, . . 61 



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 . . . . 200 



Stem, Exogenous 296 



Stem, Structure of 289 



Stems 282 



Stigma 318 



Stomata 309 



Stool, 287 



Suckers .287 



Sucroses, 39, 65 



Sugar, Estimation of 66 



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, 28, 1?1, 146 



Sulphates, Function of . . < .210 

 Sulphates reduced by plant, . 208 



Sulphides, . r-' 26, 130 



Sulphide of potassium, . . . .130 



Sulphites, , . 129 



Sulphur, 25, 129 



Sulphur in oat, 208 



Sulphur dioxide 25, ISO 



Sulphureted hydrogen, . .26, 115 



Sulphurets, 26 



Sulphuric acid 26, 130 



Sulphuric acid in oat, . . . .208 



Sulphuric oxide (SOj) 209 



Sulphur trioxide (SOs), . . .25,130 



Sulphurous acid, 25, 129 



Symbols, Chemical . . . . 31 



Tao-foo 96 



Tapioca, 61 



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 



Trypsin 104 



Tubers 273, 288 



Tuscan hat-wheat 158 



Tyrosln, 116 



intimate Composition of Vege- 

 table Matters 13, 29 



Umbelliferous plants, .... 330 

 tJnripe seed. Plants from . . .338 



Urea 115 



Valence 35 



Varieties, 158,326,327 



Vascular bundle of maize 



stalk 291,293 



Vascular-tissue, 255 



Vegetable acids, 76 



Vegetable albumin 90 



Vegetable casein 94 



Vegetable cell, 243 



Vegetable fibrin, 92 



Vegetable globulins, 97 



Vegetable mucilage 67 



Vegetable myosins, ..... 98 



