CONTENTS. 



FIRST PART. 







PAGE 



GENEEAL INTEODUCTION 



I. ANATOMICAL SECTION (88 1-140}. 



\" /' ...! 



Chapter I. The Unicellular Organism, . . i 



II. The Central Capsule, . . xx j v 



IIL The Extracapsulum, .... ]j 



IV. The Skeleton, . . lxviii 



II. BlOGENETICAL SECTION ( 141-200), . . xc jj 



Chapter V. Ontogeny (Individual Development), . . xc ijj 



VI. Phylogeny (Genealogical Development), . . c 



III. PHYSIOLOGICAL SECTION ( 201-225), . . . cxxviii 



Chapter VII. Vegetative Functions, . . cxxviii 



,, VIII. Animal Functions, . . cx j 



IV. CHOROLOGICAL SECTION ( 226-250), . . cx j^ 



Chapter IX. Geographical Distribution, . . cxlvi 



X. Geological Distribution, . . . c j x j v 



V. BIBLIOGRAPHICAL SECTION ( 251-254), . , 



SYSTEMATIC PAET, ..... j 

 I. Subclass PORULOSA, 



. D 



Legion I. SPUMELLAEIA vel PEEIPYLEA 



o 



Order 1. COLLOIDEA, ... ,~ 



2. BELOIDEA, .... 28 

 3. SPH^EOIDEA, . 



4. PRUNOIDEA, ..... 284 

 5. DISCOIDEA, ..... 



6. LARCOIDEA, . _ 



Legion II. ACANTHAEIA vel ACTIPYLEA, . 716 



Order 7. ACTINELIDA, . . . 



8. ACANTHONIDA, . ~ 



9. SPH^ROPHRACTA, . 



10. PKUNOPHEACTA, 







