CONTENTS. Xlll 



CHAPTER XXXV. 



Distribution of the Crustacea in Space Distribution of the Crustacea 

 in Time PAGE 195-197 



CHAPTER XXXVI. 



General Characters and Divisions of the Arachnida . . . 197-200 



CHAPTER XXXVII. 



Divisions of the Arachnida Podosomata Acarina Adelarthroso- 

 mata Pedipalpi Araneida 200-206 



CHAPTER XXXVIII. 



Myriapoda G-eneral Characters of the Class Chilopoda Chilognatha 

 Distribution of Myriapoda in Time 206-208 



CHAPTER XXXIX. 



General Characters of the Insecta Metamorphoses of Insects Sexes 

 of Insects 208-216 



CHAPTER XL. 



Divisions of the Insecta Anoplura Mallophaga Thysanura 

 Hemiptera Orthoptera Neuroptera Aphauiptera Diptera 

 Lepidoptera Hymenoptera Strepsiptera Coleoptera . . 216-226 



CHAPTER XLI. 



G-eneral Characters of the Mollusca Digestive System Circulatory 

 System Respiratory System Nervous System Reproduction 

 Shell 227-231 



CHAPTER XLIL 



Molluscoida Polyzoa Distinctions between thePolyzoaandHydrozoa 

 Polypide of the Polyzoa Anatomy of the Polyzoa Reproduction 

 and Development Divisions of the Polyzoa .... 232-239 



CHAPTER XLIII. 



Tunicata General Characters Development Types of Homologies 

 Divisions , 240-244 



CHAPTER XLIV. 



Brachiopoda General Characters Shell Arms Atrial System 

 Divisions 244-248 



