ANIMAL REPRODUCTIONS. 299 
© Afer {peaking of the admirable ftru@ure of 
* the head, I fhall proceed to the refult of my 
* Jaft experiments on {nails, fuch as they have 
© been fince 1772 and 1773, with the fame con- 
¢ fequences which you was the firft to announcé 
“in your Prodromo fopra le reproduzioni animali, 
© and have fo accurately defcribed. The expe- 
© riments I made were on fome of the fnails cal- 
led by the celebrated Linnzus, Helices Poma- 
‘tia, Itale, Lufitanie, Zonariea, Arbuftorum, 
© Nemorales Lucorum, Grifea, &c. On the firft 
“of May 1782, I cut off the larger horns of 
© twenty-four of thofe which you gave me to car- 
“ry from Reggio, and from an equal number, 
© both the large and fmall. From twenty-four, I 
€ cut the extremity of the tail, and as many were 
* deprived of the head. A flice above two lines 
‘ broad and ten long was alfo cut from the fide 
* of the foot of other twenty-four. Thefe various 
* mutilations were repeated the fame day on the 
‘ like number of the fnails of Parma, of the fame - 
‘ fpecies as the Reggian. The former were dif- 
© tinguifhed by the letter A, and the latter by B; 
‘and all the reft being alfo diftinguifhed, they 
¢ were put into veffels. ‘The horns had been cut 
© off with fharp fciflars, while full ftretched, fome 
at the root, others through the middle. The 
* head, tail, and foot were divided with a fharp 
* knife, when well extended from the fhell on a 
| ‘ hard 
