Vni CONTENTS. 



LECTURE XII. 



Page 



Annulata ..---.-- 248 



LECTURE XIII. 



EpIZOA and ClRRIPEDIA ------ 266 



LECTURE XIV. 

 Ceustacea -------- 296 



LECTURE XV. 

 Crustacea -------- 314 



LECTURE XVL 

 Insecta -------- 344 



LECTURE XVII. 

 Insecta -------- 372 



LECTURE XVIII. 

 Generation of Insects ------ 387 



LECTURE XIX. 

 Arachnida ..----.- 442 



LECTURE XX. 

 TuNiCATA, Brachiopoca ------ 469 



LECTURE XXI. 

 Lamellibranchiata ------- 503 



LECTURE XXIL 

 Pteropoda and Gastropoda ----- 535 



LECTURE XXHL 

 Cephalopoda ------- 576 



LECTURE XXIV. 

 Cephalopoda ._---.- 603 



Works referred to by Roman Numerals in the Present Volume 653 

 Glossary _.---.-- GG7 



Index - - - - - - - - - 682 



