OOI^TEl^TS. 



CHAPTER I. 



PAGE 



Fkesh-water Shells . . .... 1 



Where to collect, 1 ; Empty or Dead Sliella, 2 ; Parts of a Shell named, 8 ; Forms of 

 Spire, Dextral, and Sinistral Shells, 4; Lines of Growth, Growth of a SIkjU, 5, 6. 



CHAPTEE II. 



Fkesh-water Snails ...... 



Where and how to collect, 7, 8 ; Live Shells, 8 ; Head, Tentacles, Foot, how they 

 breathe, 9, 10; Operculum, 13; Gills, 13. 



CHAPTER III. 



Land Snails . . .... 14 



Where to collect, 14; Parts of the Animal, 15, 16; Tentacles, Jaw, 17 ; Explanation 

 about an Object being enlarged, 18; Slug, 19; Eggs and Young, 20; Mantle, 21. 



CHAPTER IV. 



Sea Snails .... . . 21- 



Where to collect, 22; Entire Aperture, Aijerture 15'otehed or Canaliculated, 23; Si- 

 phon, and its Uses, 24 ; Flesh and Animal Feeders, 25 ; Egg-cases or Capsules, 

 26, 2T. 



CHAPTER V. 



Fkesh-watek Mussels . . . .27 



Where found, 27; Ligament, Lines of Growth, 28; Regions of Mussel, 29; How 

 they crawl, 30 ; Excurrent and Incurrent Orifices, 81 ; Siphons, Mantle, 32 ; How 

 Pearls are formed, 33; Internal Markings of Shell, Hinge, 84 ; How the Shells 

 open and Ligament acts, 36. 



