VI CONTENTS. 



PAGE 



CHAP. VI. Stem and the Origin of Wood 187 



CHAP. VII. Leaves .202 



CHAP. VIII. Bracts 208 



Calyx and Corolla 208 



Disengagement of Caloric 211 



CHAP. IX. Fertilisation 217 



Sexuality of Plants 236 



Mules 241 



CHAP. X. Fruit . . ,.. '. . . . 252 



Changes during ripening 256 



Bletting 257 



CHAP. XI. Seeds 259 



Germination 259 



Action of Heat 260 



Their Longevity 266 



CHAP. XII. Food of Plants 270 



Carbon 270 



Water 272 



Nitrogen 273 



Power of Selection . 275 



Exhaustion of Soil 285 



Manures 286 



CHAP. XIII. Digestion 287 



Decomposition of Carbonic Acid 295 



CHAP. XIV. Of Secretions 300 



CHAP. XV. Of Respiration 308 



CHAP. XVI. Of the Movement of Fluids 323 



General Motion . 325 



Rotation 331 



Cyclosis 336 



BOOK III. GLOSSOLOGY. 



Absolute Terms 344 



Figure . 347 



Division 358 



Surface 363 



Texture . . 366 



Size . . . . .367 



Duration 368 



Colour . . . . . . 369 



Veining 373 



