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be fuch as,to kill the birds, Fdoubt not but the fame 
will kill the worms, and moré: effectually cleanfe the 
trees, and with lefs, injury than it is poflible for the 
birds to do. But the propagation ofmoft infeéts is 
fo great, and fo rapid, that it is hardly to be con- 
ceived by thofe who have not made obfervations 
thereon; for inftance, the common flefh-fly. will 
bring forth fome hundreds of nits, each of which 
will produce a large fly again within one month: 
fome of the leffer flies in lefs time than thefe. 
From the obfervations I have made on ihefe 
things, I am of opinion, that every means made ufe 
of by man, which do in the leaft tend to leffen the 
number of thofe birds, whofe principal food:is in- 
fe&s, ought to be difcouraged. 
I am, Gentlemen, . 
Your moft humble fervant, 
| JOHN HASKINGS. 
Lyme, Dorfet[bire. 
ART. 
