CATECHISM OF COXCHOLOGV. 



has done its office. It seems as if maternal 

 nature delighted to baffle the researches of her 

 sons, for the wisest of mankind would find it 

 impossible to account for this extraordinary fact. 



" Proud, scornful man ! thy soaring wing 

 Would hurry towards infinity ; 

 And yet the vilest, meanest thing 

 Is too sublime, too deep for thee !" 



CHAP. II. 

 DIVISIONS OF THE ORDER TESTAC^EA/ 



Q. WHAT are the, natural divisions of the order 

 Testacea ? 



A. Multi valves, Bivalves, Univalves. 



Q. What is the meaning of the word Valve ? 



A. By the word valve, is meant any single 

 piece of calcareous substance, let the form be 

 what it may, which serves as an habitation or 

 protection, either partially or entirely, to a mol- 

 luscous animal. 



