ANIMAL REPRODUCTIONS, 337 
‘feribe from the Diionnaire d’Hiftoire Naturelle 
‘the paflage to which M. de Bomare refers, 
*{ confefs that, being unable to credit the-re- 
* production, I made many experiments on the 
* fubje& while at the Chateau de Chantilly dur- 
* ing Autumn 1768, which have fince been com- 
“municated to the public; and the refult fol- 
“lows. I decapitated fifty-two terreftrial fnails - 
“all, whenever they felt the fharp-edge of the 
* knife, fuddenly and very powerfully contraéted 
“ themfelves, and the operation finifhed, the part 
“ that retired precipitately into the fhell appeared 
* corrugated like the extremity of the re@tum of 
“a hen. Nine were twenty-four hours in mo- 
‘ tion, and only thofe which’had an imperfe@ cut 
“on the neck between the large horns and the 
“ organs of generation; the knife being fo blunt 
* that I had evidently feen all the horns retract 
“into the interior of the animal. ‘Thus I had 
“only feparated the fkin and jaw of the {nails ; 
“fo that im ten or twelve days, they proceeded 
“from the fhells ‘crawling about with mutilated 
‘horns. The fnails, which loft the diagonal half 
“ of the head, difplayed no more than two horns : 
“ but all thofe that I had completely decapitated, 
‘ which were by far the moft numerous, died in 
“<a few days, except two, which lived five months 
* fixed to a wall, and died in {pring without in. 
“dicating reproduction of the head. 1 have 
Vou. I. x * made 
