[ 3^3 3 
twice the diameter of their fize. Indeed I fed 
them fparingly ; the others are grown as big as 
half a green pea. Fig. 9. 
The Sea-Anemonies have a progreffive motion ; 
which, though flow, is performed in every direc- 
tion, with a degree of facility, and effected by 
means of mufcles, which crofs one another at right 
angles. I cannot as yet difplay the mechanifm of 
thefe mufcles, becaufe the laft mutilations I was 
obliged to make difcompofe the conjectures that 
fome men of learning have publifhed upon this 
fubjeCt ; and I have not fufficiently fixed my 
thoughts in confequence of my obfervations. 
Thefe animals, being put into frefh water, die 
very foon after, and whatever their colour be when 
they are put in, they foon turn pale, and remain 
pretty near in the fame pofition that they were in. 
Soon after, their coat becomes fo flabby, that it can 
very 
vrai qu? je leur ai donne peu de nouriture ; les autres font gros 
comme la moitie d’un pois verd. Fig. 9. 
Les anemones de mer ont un mouvement progreffif, a la 
veriteaflcz lent, mais qui s’execute pourtant en tous fens avec 
tine forte de facilice. 11 depend de mufcles qui fe croifent a 
angles droits ; mais je ne puis en developer ici le mechanifme, 
parceque les dernieres mutilations que j’ai faites deconcer- 
tent les conjectures que quelques favans avoient publiees fur 
ce point, et qu’en confequence je n’ai pu encore fixer mes idees 
ace fujet. 
J’ai mis des anemones de mer dans de l’eau donee, elles y 
ont peri prefqu’auffitot, on les voit palir un peu, de qutlque 
couleur qu’elles foient et demeurer a peu pres dans la m'eme po- 
fition qu’elles etoient au moment qu’on les y a plongees. Pen 
de temps apres, leur robe devient fi facile a entamer, qu’un 
pein- 
