TABLE OF CONTENTS xvii 

 LESSON XXIX. 



PAGE 



THE DOGFISH 366 



LESSON XXX. 



MOSSES 400 



LESSON XXXI. 



FERNS ' . . . 412 



LESSON XXXII. 



THE CHIEF DIVISIONS OF THE VEGETABLE KINGDOM ..... 431 



EQUISETUM 434 



SALVINIA 438 



SEI.AGINELLA 442 



LESSON XXXIII. 



GYMNOSPERMS , . 447 



LESSON XXXIV. 



ANGIOSPERMS 461 



SYNOPSIS 477 



INDEX AND GLOSSARY 487 



