XIV CONTENTS 



MOLLUSC SHELLS 



Example 1. — Fresh-water Mussel: General structure. Example 2. — Pond 

 Snail : General structure 189-193 



THE SOFT PAETS OF THE FEBSH-WATEE MUSSEL 



External anatomy ; Internal anatomy — the digestive system, the circulatory 

 system, the nervous system, the excretory system ; The examination of 

 transverse sections ; Habits 194-202 



MoEPHOLOGT — External anatomy — shape, size, color, general structure; In- 

 ternal anatomy — the skeleton, the muscular system, the digestive system, 

 the respiratory system, the urino-genital system, the circulatory system, 

 the external anatomy of the heart, the veins, the arteries, the internal 

 anatomy of the heart, the lymph hearts, the nervous system, general 

 structure, the central nervous system, the peripheral nervous system ; 

 the eye and the ear; Microscopic anatomy; Phtsiolo&t — locomotion, 

 nutrition, development 203-263 



Part III 

 THE BIOLOGY OF THE PLANT 



GEEBN FELT 



Morphology — Vegetative condition. Naked-eye characters, Microscopic char- 

 acters. Reproductive condition ; General questions 26'7-2'72 



STONBWOET 



MoKPHOLOST — Naked-eye characters. Microscopic structure; Physiology — 

 growth, movements of protoplasm ; General questions 273-284 



EOCKWEED 



Morphology — Naked-eye characters. Microscopic examination ; Physiology 

 — the fertilization of the oosphere; General questions 285-296 



