TABLE OF CONTENTS, 1x 
Cuap. Il.—Prmary ELEMENTS OF ORGANIC STRUCTURE 
1. The Vegetable Cell 
2. Vegetable Tissues 232 
Crap. II.—VEGETATIVE ORGAN: 234 
§1. ae hee — Fe 
Spon ‘ioles, 
tices of bee. 238 
Delleacy of Structure. 239 
Apparent Search for Food. 241 
Root-hairs....... wise shes 243 
Contact of Roots with S 245 
Absorption by Root.. 248 
Soil Roots, Water Ro 252 
Excretions 258 
*® §2. The Stem 260 
Buds. 261 
Layers, 264 
Root-Stocks 265 
Tubers... 266 
Structure of th 267 
Endogenous Plants. . 268 
Exogenous ve 273 
Sieve-cells... 280 
§ 3. Leaves... 283 
Leaf Pores 285 
Exhalation of Water Vapor 287 
Offices of Foliage...... 290 
Cuap, [VY.—REPRODUCTIVE Organs 291 
§1. The Flower.. eve 291 
Fertilization. 1... ss sses sees eccceececeeececeeeeertee ee «294 
FRY DYIGI ZI C55 o ic eisiere siaisishaqereies sieiaeslonnnag ae oaidaceense oaceee 295 
Darwin's sa simi aiare S18 2 1 298 
§ 2. BL bivese sacs sania one ctenewen aise eed eaenee Eanes ++--800 
BOO vioisisics asia sie cisinisin's ee ierateinie Danae aes Siewralarale wise 4 Hea ealecrew 302 
eee aiate rardiareneietes 302 
§3. Viaiite of seeds and their influence on the Plants they produce. my 
Duration Of Vitality. ss cccercse vesasaiecevensaelenes svrviac lees 
Use of old, unripe and light seeds... 307 
Church’s Experiments on Seed Wiheatiae acre san os seit 808 
Caap. I.—GERMINATION.. 
§ 1. Introduet 310 
2. Phenomena o! 311 
8. Conditions of me ea 312 
Proper Di 316 
§ 4. Chemical 318 
Chemistry of Male SiGiaicle sora Miata a 505) Stae) avers, bi)" ena oes 010 319 
Cuaap. IL.— - Food of the Plant when independent of the Seed...... 327 
. The Juices of the Plant. 330 
* Flow of Sap, rf 331 
Bleeding... 332 
Com ositio of Say 337 
Kinds of Sap.. 338 
Motion of Nutrie: 340 
§ 3. Causes of Motion of the Juices 846 
Porosity Of Lissuesciccis.eieasikeesieceiniceiain snlayerainsiatayeia\d ons 846 
Tnp/pitfon cle cvaxevesare rie tap aratansiae marge 346 
ile ATTA CE ONG wc ajess sicisgieisiere:s nie vocisiehsiesion ' elerdetdatdiermengiaeereis 349 
Fquid Diffusion ced ces cosaens i vcecaemsiers ge tate wiswaien yereaienes 361 
aos or Membrane Diffusion..... ..0..... ces ee eee e ees 354 
ROOt, ACN wie: sacciver srpmioewas wertaerades se inaeeotesaeese 360 
Selective Power of Plant.............ccecceeseveeveneveceees 362 
4, Mechanical Effects of OSMOSC........ 0. cece eect eee e enon ee 368 
5. Direction of Vegetable Growth aside gai sniirafessoonetavdid neee omee aaa Ld 370 
APPENDIX.—TABLES. 
Taste I.—Composition of the Ash of Agricuit’] Plants and Products. Averages.3%6 
1* 
