282 OBSERVATIONS ON 



ground. Hence the way to be rid of them 

 is, to kill as many as possible before they 

 begin to breed. 



Large, grey, shell-less, cellar snails lay 

 themselves up about the same time with 

 those that live abroad ; hence it is plain 

 that a defect of warmth is not the only cause 

 that influences their retreat. White. 



SNAKES SLOUGH. 



- — — There the snake throws her enameU'd skin. 



Shakespeare, Mids, Night's Dreatn. 



About the middle of this month (Sep- 

 tember) we found in a field near a hedge 

 the slough of a large snake, which seemed 

 to have been newly cast. From circum- 

 stances it appeared as if turned wrong side 

 outward, and as drawn off backward, like 

 a stocking or woman^s glove. Not only the 

 whole skin, but scales from the very eyes, 

 are peeled off, and appear in the head of 

 the slough like a pair of spectacles. The 

 reptile, at the time of changing his coat. 



