CONTENTS. 



CHAPTER XXXVII. 



Divisions of the Arachnida Podosomata Acarina Adelarthroso- 



mata Pedipalpi Araneicla, . . 258-264 



CHAPTER XXXVIII. 



Myriapoda General characters of the class Chilopada Chilog- 



natha Pauropada Distribution of Myriapoda in time, . 264-267 



CHAPTER XXXIX. 



General characters of the Insecta Metamorphoses of Insects Sexes 



of Insects, 267-276 



CHAPTER XL. 



Divisions of the Insecta Anoplura Mallophaga Thysanura 



Hemiptera Orthoptera Neuroptera Aphaniptera Diptera 



Lepidoptera Hymenoptera Strepsiptera Coleoptera, . 277-292 



CHAPTER XLI. 



General characters of the Mollusca Digestive system Circulatory 

 system Respiratory system Nervous system Reproduction 

 Shell, f 293-297 



CHAPTER XLII. 



Molluscoida Polyzoa Distinctions between the Polyzoa and Hy- 

 drozoa Polypide of the Polyzoa Anatomy of the Polyzoa 

 Reproduction and development Divisions of the Polyzoa, . 298-306 



CHAPTER XLIIL 



Tunicata General characters Development Types of Homo- 



logics Divisions, . 306-311 



CHAPTER XLIV. 



Brachiopoda General characters Shell Afms Atrial system- 

 Divisions, 312-317 



CHAPTER XLV. 



Distribution of Molluscoida in space Distribution of Molluscoida in 

 time, 3 l8 '3i9 



CHAPTER XLVI. 



General characters and divisions of f the Mollusca Proper Lamelli- 

 branchiata General characters and anatomy Divisions Fami- 

 lies of the Lamellibranchiata, 3 2O '3 2 9 



CHAPTER XLVIL 



Encephala Gasteropoda General characters Development Shell 



of Gasteropoda, 329'334 



