SLUGS ANil SNAILS. 273 



by their slime, and in no ways afl'ected. Again, we must note 

 they only come out at dusk, or after rain, or in damp weather ; 

 evening and early morning are then the times to attack them, 

 and more especially so in dry weather. Salt is the most suc- 

 cessful substance, especially if mixed with soot. 



Both Snails and Slugs have many natural enemies, such as 

 ducks, fowls, rooks, starlings, blackbirds, and thrushes. The 

 last two are of great assistance in keeping dovm an excess 

 of Helices. Moles, shrews, and toads also eat them. 



