ANIMAL REPRODUCTIONS. 264 
of Copenhagen, printed 1769, and republifhed 
im his work, Vermium terreftrium et fluviatilium 
fuccinéta hiftoria.. And as this treatife is not very 
fhort, I fhall only give an abridgement of it. 
1. ‘he German naturalift aecomplifhed decapi- 
tation with very fine fciffars, when the fnail was 
fully ftretched ; taking the greateft care not to 
cut off the part ufually called the foot. 2. Im- 
mediately after decollation, he conftantly exa- 
mined the amputated head, both with his naked 
eye and a magnifier, and alfo fhewed it to learn- 
ed men, who beheld not only the four horns, the 
extremities of the two larger with eyes, but the 
mouth, lips, and jaws. 3. Though part of the 
fkin and horns may be taken away, and not the 
head, an exact obferver cannot be deceived, by 
examining the fevered portion which remains on 
the blade of the feiffars; and he eafily judges 
whether or not the operation has been properly 
performed. 4. The reproduced parts are diftin- 
guifhed from the reft by greater whitenefs and 
tranfparency ; while thofe feparated always con- 
tinue obfcure. 5. Many accidents evitable and 
inevitable may impede reproduction ; but a fingle 
operation, accurately performed, will prove the 
fact without reply. , 
Thefe are preliminary remarks; and the fum 
ef Muller’s obfervations is as follows. 
; Both 
E> 
