[ 474 ] 
teemed to give the Second Moiety more Eafe in 
advancing, and it no longer feemed to be fo much 
affc&ed by all that touched it. 
Next Day I took notice, on the Wound of each 
Moiety, of a fmall Accretion, diftinguifhable by the 
Difference of Colour, which was there much clearer 
than in the reft of the Body ; the following Days it 
became yet more perceptible. In fhort, at about a 
Week's End, each Moiety was again become a com- 
plete Worm. The Head that had fprouted out on 
the Second Parr, was, as to its Form, cxa&ly the 
fame with that of the Firft, and equally fit for all 
the fame Fun&ions. Again, the new Tail of the 
Firft was in every refpe<ft like the old one. The 
Heart, the Stomach, <&c. had prolonged themfelves 
in one and the other, and the Parts newly produced 
a&ed with no lefs Vigour than the reft 5 and new 
Rings had beftdes been produced fucceftlvely beyond 
the old ones. 
I took care, from time to time, to meafurc, with 
as much Exa&nefs as I could, the Growth of my 
Two Worms; and I intended to watch them on, 
with the fame Attention; when, at the End of about 
Eight Days, to my great Surprize, they had found 
means to efcape. 
III. This Experiment, which I thus could not pur- 
fue as far as I had wifhed, feeming to require Repe- 
tition, I undertook it again, with the fame Care : 
The Succefs did not fail anfwering : I foon had the 
Pieafure to fee my Two Moieties recover what they 
wanted, and become fuch as they had been before. 
IV. I afterwards tried to carry the Divifion farther, 
and to divide fome of thefe Worms into Three, Four, 
Eight, 
