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In Mr. simon’s letter of the 26th of Novem- 
ber, you will pleafe to obferve, that he mentions 
a particular fhell, whofe fnail had come out re- 
peatedly four different times, in the prefence of 
different people ; each of whom have allured me 
that they faw it. That gentleman having done 
me the favour to dine with me, a day or two after 
the date of that letter, he brought the identical 
fhell (as he declared), in order that we might try 
if the fnail would again make its appearance. 
The company were not difappointed ; for, after 
the fhell had lain, about ten minutes in a glafs of 
water that had the cold barely taken off, the fnail 
began to appear ; and in five minutes more we 
perceived half the body fairly pufhed out from 
the cavity of the fhell. We then removed it 
into a bafin, that the fnail might have more fcope 
than it had in the glafs : and here, in a very fhort 
time, we faw it get above the furface of the wa- 
ter, and crawl up towards the edge of the bafin. 
While it was thus moving about, with its horns 
ered:, a fly chanced to be hovering near, and, per- 
ceiving the fnail, darted down upon it. The little 
animal inflantly withdrew itfelf within the fhell, 
but as quickly came forth again, when it found 
the enemy had gone off. We allowed it to wander 
about the bafin for upwards of an hour ; when 
we returned it into a wide-mouthed phial, wherein 
Mr. Simon had lately been ufed to keep it. He 
was fo obliging, as to prefent me with this re- 
markable (hell ; and I obferved, at twelve o’clock, 
as I was going to bed, that the fnail was dill in 
motion : but, next morning, 1 found it in a torpid 
date, flicking to the fide of the glafs. 
Vol. LXIV. K k k 
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