CONTENTS. XV 



CHAPTER III. 



PAU* 



POLYZOA — MOLLUSCA — GASTEROPODA — BRACHIOPODA — CONCHI- 

 FERA — CEPHALOPODA — PTEROPODA — TUNICATA — CRUS- 

 TACEA — ENTOMOSTRACA — CIRRIPEDA — ENTOZOA — ANNU- 

 LOSA — ANNELIDA F 1 * 



CHAPTER IV. 



SUB-KINGDOM ARTICULATA — INSECTA — ARACHNIDA .... 579 



CHAPTER V. 



VERTEBKATA — PHYSIOLOGY — HISTOLOGY — BOUNDARY BE- 

 TWEEN THE TWO KINGDOMS — CELL THEORY — GROWTH OF 

 TISSUES — SPECIAL TISSUES— SKIN, NERVES, CARTILAGE, 

 TEETH, BONE, ETC 654 



CHAPTER VI. 



INORGANIC OR MINERAL KINGDOM — FORMATION OF CRYSTALS 



— POLARISATION — SPECTRUM ANALYSIS, ETC 728 



