56 THE BOOK OF NATURE STUDY 



devour lettuce, cabbage, and other leaves readily. Or they may 

 be kept out of doors and confined to a limited area by a small 

 moat full of water. In either case it is important to provide 

 cool shady spots for them, and a fair degree of moisture. 



The Roman snail was a favourite article of food with the 

 ancients, and is still held in esteem on the Continent, and in 

 our own country there is demand for the garden snail in the 

 Western counties and in Yorkshire. 



BIBLIOGRAPHY. Vide sub-Anodonta, p. 69. 



