CONTENTS. XV 



CHAPTER III. 



PAGE 

 POLYZOA — MOLLTJSCA — GASTEROPODA — BRACHIOPODA — CONCHI- 

 FERA — CEPHALOPODA — PTEROPODA — TUNICATA — CRUS- 

 TACEA — ENTOMOSTRACA — CIRRIPEDA — ENTOZOA — ANNU- 

 LOSA — ANNELIDA 511 



CHAPTER IV. 



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



CHAPTER V. 



VERTEBRATA — PHYSIOLOGY — HISTOLOGY — BOUNDARY BE- 

 TWEEN THE TWO KINGDOMS — CELL THEORY — GROWTH OF 

 TISSUES — SPECML TISSUES— SKIN, NERVES, CARTILAGE, 

 TEETH, BONE, ETC 654 



CHAPTER VI. 



INORGANIC OR MINERAL KINGDOM — FORMATION OF CRYSTALS 



— POLARISATION — SPECTRUM ANALYSIS, ETC 728 



