ANIMAL REPRODUCTIONS. 359 
smenfe wound was perfectly cicatrifed, but no in- 
dications of reproduction were perceptible. 
Towards the middle of Otober, other two 
{nails died. On the 18, the four remaining were 
.dmmerfed in water, where they remained more 
than three hours without appearing. With my 
nail, I feratched the laft volute of the fpiral, but 
in vain. All my endeavours were fruitlefs, and 
the {nails obftinately concealed the anterior part ; ’ 
they were then taken out, and confined in their 
veffels. I will ingenuoufly acknowledge, that 1 
had little expectation that the fnails had made 
any reproductions. “What, then, was my fur- 
prife, when they proceeded from their fhellsnext — 
morning, of their own accord, and exhibited un- 
equivocal evidence of reprodution, and even of 
reproduction confiderably advanced. One, in 
beginning to repair the head, had two large 
horns about a line in length, fig. 19. The left, 
c, which was thicker than the other, had two dif- 
tin black eyes at the extremity. ‘The right 
horn, on the contrary, feemed to have none. 
No regeneration of the fmall horns, or mouth, 
could yet be difcovered. 
Another {nail had likewife begun to reproduce 
two large horns, nearly of the fame fize as the 
7 preceding, but the right horn was monftrous ; it 
apparently terminated by three {mall foft points, 
fig. 20. 
; Var The 
