CONTENTS. 
11 
PART III.—CLASSIFICATION. Pag * 
LECTURE XXI—Method of Tournefort.—System of Linnaeus.—Natural Methods.—Meth¬ 
od of Jussieu.—Comparison between the Classifications of Tournefort, Linnaeus, 
10/4 
and Jussieu.... 
LECTURE XXII.—Characters used in Classification. .... 130 
LECTURE XXIII.—Use of Botanical Names.—Artificial Classes and Orders considered in 
Groups.—Classes Monandria and Diandria...... 
LECTURE XXIV.—Class III. Triandria.—Class IV. Tetrandria....... 
LECTURE XXV.—Class V. Pentandria........ 
LECTURE XXVI.—Class V. Pentandria continued..... 
LECTURE XXVII.—Class VI. Hexandria.—Class VII. Heptandria..... 
LECTURE XXVIIL—Class Vm. Octandria.—Class IX. Enneandria... 
LECTURE XXIX.—Class X. Decandria..... • 
LECTURE XXX.—Class XT. Icosandria........... 
LECTURE XXXI.—Class XII. Polyandria...... • • • • 
LECTURE XXXII.—Class XIII. Didynamia.—Class XIV. Tetradynamia... 
LECTURE XXXIII.—Class XV. Monadelphia......». 
LECTURE XXXIV.—Class XVI. Diadelphia... 
LECTURE 1AAT.-Class av u. syngenesia.... •.. 
LECTURE XXXVI.—Class XVIII. Gynandria ..... ........ B ,., 
LECTURE XXXVII.—Class XIX. Monoecia. Class XX. Dioacia..,....... 
LECTURE XXXVIII.—Class XXL Cryptogamia ..... 
134 
139 
146 
151 
154 
159 
162 
166 
168 
171 
175 
178 
181 
187 
189 
194 
PART IV. 
LECTURE XXXIX.—The Flowering season of Plants.—Vernal and Summer Flowers.... 201 
LECTURE XL.—Autumnal Flowers.—Evergreens.—Ancient Superstitions respecting 
Plants.—Various Phenomena of Plants.. .....205 
LECTURE XLI.—Habits of Plants.—Agents which affect their growth.—Their Habitations. 
—Geographical situations.—Elevation corresponding to latitude...209 
LECTURE XLII.—Plants as affected by cultivation.—Change of organs.—Diseases.—Eco¬ 
nomical uses........... 214 
LECTURE XLIII.—History of Botany from the Creation of the World to the revival of let¬ 
ters in the reign of Charlemagne, A. D. 770.................................. 219 
LECTURE XLIV.—History of Botany from the 8th century to the discovery of America... 223 
LECTURE XLV.—History of Botany from the beginning of the 16th century to the time of 
Linnseus.... 226 
LECTURE XLVI.—History of Botany from the time of LinneeusTo the present........... 230 
LECTURE XLVII.—General Views of Nature.—Organized and Inorganized bodies.—Clas¬ 
sification of Animals..... 235 
LECTURE XLVIII.—Comparison between Animals and Plants.—Conclusion, 243 
PART V.—APPENDIX. 
I 
Illustration of the Habits of Plants...... 2 
Natural Orders...... 27 
Description of Genera.......... 34 
Description of Species......... 71 
Vocabulary........ 153 
Symbolical Language of Flowers......... 171 
Alphabetical Indexes.........175 
Common names of Plants......... 181 
