nnJEx. 



XT 



Qncrcite 78 



Eadiclc 303 



Eed clover hay, "Ultimate analysis of. 45 



" beet, Pigment of 367 



" pine. Pith rays of 376 



" snow 223 



Kelationa of Cellulose and Pectose 



Groups 84 



Relations of Fats to Amyloids 94 



" " Veg. Acids to Amy- 

 loids 89 



Reproductive Organs 222, 291 



Rice, ash-analysis 151, 152, 379 



" pros. " 387 



" " " detailed 3S9 



" roots of 252 



Rind 275 



Ringing of stems 341 



Rock Crystal 120 



Root-action, imitated 361 



" '^ in winter 333 



" " Osmose in SCO 



" cap 235 



" crops, ash-analyses 155, 377 



" prox. " 387,889 



" cuttings 237 



" distinguished from stem 236 



" excretions 258 



" hairs S43 



" office in Nutrition 327 



" power of vine 248 



" Scat of absorptive force in 249 



" stock 265 



Rootlets 238 



lioots, Structure of. 234 



" Bursting of 369 



" contact with Boil 245 



" going down for water 254 



" Search of food by 241 



" Quantity of 242 



Rubidium 125 



'■ action on oat 196 



Runners 264 



Rye, ash-analysis 150, 153, 379 



" prox. " 387,388 



Saccharose 72 



" Amount of, in plants 73 



Sago 64 



Safieratus 131 



Salicin 77 



Salicornia 117, 177 



Salm-Horstmar, Exp^s in artificial 



soils 166 



Sal-soda 131 



Salsola 177, 183 



Salts, Definition of 86 



"in ash of plants 129 



" Properties of. 87 



Saltwort 177 



Samphire 177 



Sap 330 



" Acid and alkaline 366 



" ascending 340 



" descending 341 



*' Composition of 337 



" of sunflower 338 



" Spring flow of 334 



" wood ~^^- 



Saponification 9S 



Saussure, exp. on mint 187 



Saxifrofia cmstata 192 



Scotch fir. Wood-cells of, fig 279 



Scouring rush 184 



Screw pine. Root cap of, 11;; 236 



Sea-weeds, Potash in 198 



Seed 302 



" vessel 300 



Seeds, constancy of composition. .,145 



Selecting power of plant 339, 382 



Sepals 293 



Series 298 



Sesqui oxide of iron 128 



" " manganese 128 



Sieve-cells 280 



" in pith 343,345 



Silex 130 



Silica ISO 



'^ does not prevent lodging of 



grain 198 



" Function of, in plant 197 



" in ash 183 



" " oat 198 



" " textile materials 185 



" unessential to plants 183 



Silicates 120 



Silicate of potash 120 



Silicic acid 130 



Silicon 119 



Silk of maize 294 



Silver Fir, Roots of 245 



Silver-grain 270 



Skeletonized plants 57 



Soaps 93 



Soda... 125 



" can it replace potash ? 176 



" essential to ag. plants ? 172 



" in strand and marine plants.. .177 

 " Variations of, in field-crops-. . .173 



Soda-ash 131 



Sodium 124 



" Chloride of 136 



Sorghum sugar 73 



Soil, Oflices of 329 



Soil-roots 252 



Solution of starch in Germination. .322 



" for water-culture 168 



Soluble silica 121 



" starch 322 



Species 296 



Spirits of salt 119 



Spongioles 2;j5 



Stomens 892 



Starch, amount in plants 66 



" estimation 66 



" in wood 337 



" Properties of. 63 



" sugar 74 



" Test for 64 



" unorganized 04 



Stearic acid 98 



Stearin 90, 92 



Stem, Endogenous 369 



" Exogenous 273 



" Structure of. 267 



Stems , 361 



Stigma r;'.K 



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