CONTENTS. 11 
P/vRT III.— CLASSIFICATION. p«,. 
LEtrTUllE XXI.— Method of Tournefort.— System of LinniPua.— Natural Methods.— Metfi- 
odofJussieu.— Comparison between tliu Classifications of Tourncfort, Linnaeus, 
and Jussieu 13i 
LECTURE XXIL— Characters used in Classification 131 
LECTURE XXIIL— Use of Botanical Names.— Artificial Classes and Orders considered in 
Groups.— Classes Moriandria and Diaiidria 134 
LECTURE XXIV.— Class III. Triandria.— Class IV. Teirandria 139 
LECTURE XXV.— Class V. Pentandria 146 
LECTURE XXVL— Class V. Pentandria continued 151 
LECTURE XXVII.— Class VL Ilexandria.— Class VII. Ileptandria 154 
LECTURE XXVin.— Class VHL Octandria.— Class IX. Enneandria 159 
LECTURE XXIX.— Class X. Decandria 162 
LECTURE XXX.— Class XI. Icosandria 166 
LECTURE XXXI.— Class Xn. Polyandria 168 
LECTURE XXXIl.— Class XIIL Didynamia.— Class XIV. Tetradynainia 171 
LECTURE XXXIII.— Class XV. Monadelphia 175 
LECTURE XXXIV.— Class XVL Diadelphia 178 
LECTURE XXXV.— Class XVIL Syngenesia ISl 
LECTURE XXXVL— Class XVnL Gynandria 187 
LECTURE XXXVIL-Class XIX. Monoecia. Class XX. Dicecla 189 
LECTURE XXXVIIL-Class XXL Cryptogamia IM 
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 203 
LECTURE XI.I.— Ilahits of Plants.— Agents which affect their growth.— Tlieir Ilahitations. 
—Geographical situations.— Elevation corresponding to latitude 203 
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 
LECTUHE XLIV.— History of Birtany from the 8th century to the discovery of America... 223 
LECTURE XLV.— History of Botany from the beginning of the 16th century to tlie time of 
Linnaeus 226 
IJECTURE XLVL— History of Botany from the time of Linna;us to the present 230 
LECTURE XLVII.— Genera! Views of Nature. — Organized and Inorganizcd bodies.— Clas- 
sification of Animals 235 
LECTURE XLVIII. — Comparison between Animals and Plants. — Conclusion 243 
PART v.— APPENDIX. 
aiustration of the Habits of Plants 8 
Natural Orders 27 
Descri|)lion of Genera ».... 34 
Description of Species 69 
Vocabulary , , 189 
Symbolical Language of Flowers 208 
Alpnahotical Indexes 210 
Common names of Plants 216 
