Contents xi 



PAGE 



CHAPTER XX. PTERIDOPHYTES LYCOPODIALES . 221 



CHAPTER XXL PTERIDOPHYTES EQUISETALES . . 227 



CHAPTER XXII. PTERIDOPHYTES OPHIOGLOSSALES . . 2: JO 



CHAPTER XXIII. PTERIDOPHYTES FILICALES . . . 233 



CHAPTER XXIV. SPERMATOPHYTES GYMNOSPERMS . . . 244 



Cycadales . . ... . ... . . 244 



Ginkgoales 2">0 



Coniferales ... ... .... . 2.50 



CHAPTER XXV. SPERMATOPHYTES ANGIOSPERMS . ... 261 



CHAPTER XXVI. USING THE MICROSCOPE . .... . 280 



CHAPTER XXVII. LABELING AND CATALOGING PREPARATIONS . . 2vs 



CHAPTER XXVIII. A CLASS LIST OF PREPARATIONS . . 290 



CHAPTER XXIX. FORMULAE FOR REAGENTS . . . . . 2 ( .7 



1XDEX . . . . . . . . . . . . . . . . . . .oil 



