256 ANIMAL REPRODUCTIONS. 
found them true, have been fo obliging as to 
communicate their memoirs. ‘The controverters 
are Meflrs Murray, Wartel, Cotte, Bomare, A- 
danfon, Schroeter, Argenville, Prefciani. In my 
fecond treatife, I fhall likewife examine the va- 
kue of the impugnations with philofophic impar- 
tiality, and fhall not fail to give the merit of the 
impugnators its full weight. Iam very far from 
fuppofing that my difcovery will form an epoch 
in natural philofophy ; it will rather form an 
epoch in the hiftory of the human mind, to fee 
how an experiment, fo certain, fo eafy as thatis, 
of obtaining the reproduction of the head of the 
fnail, has deceived fuch a number of philofo- 
phers,—and, what is more aftonifhing, in an age 
which feems to be that of obfervation and expe- 
riment, if, on the other hand, it was not remark- 
able that experiments are made by every one. 
But the proper method of experiment has always 
been, and will always be, confined to very few. 
MEMOIR 
