ANIMAL REPRODUCTIONS. 2396 
enfues is an organized whole, that is, a limb, a 
head, or a tail, in miniature, perfectly fimilar to 
the fevered one, and only requiring to be farther 
unfolded. On the contrary, no organized whole, 
comprehending all the parts of the fevered head, 
appears on the trunk of a decapitated fnail, but 
thefe parts are frequently feparate from the be- 
ginning. ‘Thus, fome frequently expand after 
others ; and only in a certain fpace are they all 
connected together, confolidated, and forming an 
organic whole, different in little or nothing from 
the old head. he fubject will be more eafily 
underftood by examples. ! 
Sometimes the incipient reproduction is a 
flefhy protuberance, adhering to the middle of 
the trunk by feveral points, and in a manner de- 
tached from it, which contains the rudiments of 
the two lips, the fmaller horns, the mouth, 
tongue, and tooth, already repaired. The other 
parts, fuch as the larger horns and the reft of 
the head, are wanting altogether. The trunk 
of another {nail will exhibit a large horn, alréady 
provided with its eye, and below, in a diftant 
ifolated part, are obferved the firft lineaments of 
the lips. In others, the reproduction is a groupe 
of three horns, two already of their natural fize, 
and the third only a bit of fkin. At firft, fome _ 
produce only a protuberance, which, by atten. 
five 
