TABLE OF CONTENTS. Xl 



Page 



Chap. V. Growth, 432 



„ VI. The Secretions, 437 



„ VII. The Sleep of Phiiits, 464 



„VIII. Vegetable Sensibility, 468 



„ IX. The Movements of Plants, 476 



,, X. Physiology of Flowers, 482 



„ XI. The Nuptials of Plants, 492 



BOOK III. 



The Seed and Germination, 507 



BOOK IV. 



Extremes in the Vegetable Kingdoji, ,'319 



Chap. I. The Lichen Rock and the Virgin Forest, 519 



., II. Giants of the Vegetable Kingdom, 528 



„ III. Vegetable Longevity, 541 



,, IV. Density of Plants, 551 



BOOK V. 



Migrations of Plants, 553 



GEOLOGY. 



BOOK I. 



Formation of the Globe, 569 



Chap. I. Appearance of Animals and Plants, 569 



„ II. Primary Epoch, 573 



,, III. Period of Transition, 575 



,, IV. Secondai-y Epoch, 585 



„ V. Tertiary Ep(jch, 596 



,, VI. C^naternary or Post-tertiaiy Period, 604 



BOOK II. 



Fossils, 6i7 



BOOK III. 



The Mou.ntains — C'.4taclysms and Upheavals of the Globe, 624 



BOOK IV. 



Volcanoes and Earthquakes, 648 



