35° ANIMAL REPRODUCTIONS, 
that fhould be purfued in refearches of a fimilay 
nature, pe ® 
Movin, 11 September 1769, 
‘J thank you, Monfieur, for your informa- 
‘tion concerning f{nails. On confidering the 
‘ different refults of naturalifts, and particu- 
© Jarly of French naturalifis, I am of opinion, 
“that, befides their inexpertnefs in the art of 
“ experiment, the diverfity of the fpecies of 
‘ fnails, on which they have endeavoured to re- 
‘ peat my experiments, has, in an eminent de- 
“ gree, occafioned. a difference in the refult of 
‘their experiments. It is certain that all the 
‘ {nails of Modena reproduce more or lefs; but 
“I do not warrant the reproduction of foreign 
* {nails : perhaps fome among them do not pof- 
© fefs this refource. You will fee more on the 
© fubje@, in my preface to the Italian tranflation 
‘of your Contemplation de la Nature, which 
‘ will appear this year. It is very probable 
‘ that the fnails, which have exercifed the in- 
‘ duftry of the learned anonymous Frenchman, 
¢ of whom you fpeak, are in the number of thofe 
¢ where the reproductive property does not refide 
‘in the higheft degree. I may fay the fame of 
¢ the {nails on which M. de Bomare and Father 
‘ Cotte have operated. But does it thence fol- 
‘ low that lam deceived? To affirm it would 
§ be a rafh affertion, to call it no more, If any 
/ ‘ one 
