374 ANIMAL REPRODUCTIONS. 
their dimenfions in length, on the 20 of Sep- 
tember. | 
Old Members. New Members. 
Arm, 4 lines. Arm, is 
Cubit, eS Cubit, 22 
Thigh, 3 Thigh, 22 
Leg, 4 Leg, 25 
Longeft finger, 37 Longeft finger, 14 
Longeft toe, 4+ Longeft toe, 1z 
Even in the beginning of October, the fifth toe 
of the new foot was not vifible. 
ExpErRIMENT II. A newt deprived of the right 
arm and left hand.—On the 12 of June, I cut the 
left hand and right arm off a newt: my chief ob- 
ject in this experiment was to verify Sig. Spallan- 
zani’s aflertion, that nature reproduces exactly 
the portion amputated, which was a fact of the 
utmoft importance in the theory of animal repro- 
duétions, and could not be too well eftablifhed. 
Towards one fide of the feétion, a little coni- 
cal nipple began to appear about the 7 or 8 of 
July, of a violet grey colour. An incipient cleft, 
indiftin@lly feen with the naked eye, was percep- 
tible near the middle of July: the papilla feemed 
ready to divide in two; and the cleft was the 
origin of two fingers. 
In 
