CHAPTER 
XVII. 
XVIII. 
XIX. 
XX. 
XXI. 
XXIL 
XXIII. 
XXIV. 
XXV. 
XXVI. 
XXVIL 
XXVIII. 
" XXIX, 
XXX. 
XXXL 
XXXII. 
XXXIIL 
XXXIV. 
XXXV. 
XXXVI. 
XXXVIIL. 
XXXVIIL 
XXXIX. 
XL. 
CONTENTS 
THE ESTABLISHMENT OF A FREE-LIVING SPOROPHYTE, 
EVIDENCE FROM PALAEOPHYTOLOGY,) - 
AMPLIFICATION AND REDUCTION, 
SUMMARY OF TIE WORKING HYPOTHESIS, 
PART I/1. 
DETAILED STATEMENT OF FACTS 
INTRODUCTION, 
BRYOPHYTA, (I.) HEPATICAF, 
BRYOPHYTA, (II.) MUSCI, - 
LYCOPODIALES—GENERAL MORPHOLOGY, 
LYCOPODIALES—SPORE-PRODUCING MEMBERS, 
LYCOPODIALES—COMPARATIVE ANATOMY, 
LYCOPODIALES— EMBRYOLOGY AND COMPARATIVE SUMMARY, 
EQUISETALES, Ss 
SPHENOPHYLLALES, 
SUMMARY FOR SPORANGIOPHORIC PTERIDOPHYTES, 
OPHIOGLOSSALES, 
COMPARATIVE DISCUSSION OF OPHIOGLOSSALES, 
FILICALES—-BOTRYOPTERIDEAE, 
FILICALES—MARATTIACEAE, 
FILICALES—OSMUNDACEAE, 
FILICALES—SCHIZAEACEAE AND MARSILIACEAE, 
FILICALES—GLEICHENIACEAE AND MATONINEAE, 
FILICALES—LOXSOMACEAE AND HYMENOPHYLLACEAK, 
FILICALES--THYRSOPTERIDEAE, DICKSONIEAE, DENNSTAED- 
TIINAE, CYATHEAE AND SALVINIACEAE, 
FILICALES— MIXTAE, 
COMPARISON OF THE FILICALES, 
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