86 Process of Reproduction of the 



so that if little more than one-third has been removed, there is 

 no more new growth than what is sufficient to complete the ratio. 



When the growth of the first joint is completed, the vascular 

 spot entirely disappears. The new growth at this period is irre- 

 gularly conical in form, and presents all the other appearances just 

 described. Its base is circumscribed by a red border, indicating 

 the seat of numerous red vessels. The extreme point seems 

 almost devoid of cuticle, or covering, but that of the base ap- 

 proaches, in some degree, the natural skin. 



During two or three days more, generally about fifteen from the 

 period of cicatrization, the new growth ceases to increase in length, 

 but seems to acquire more consistence, gradually beginning to be 

 converted into the different structures of the limb. The extremity 

 is less pointed, and rather enlarged and bulbous. Its point is flat, 

 and the circumference rises above the central part, which is not 

 shining and moist, uncovered by membrane, and studded with 

 vascular spots, which bleed on being touched, like the granula- 

 tions of a wound, to which they may in many respects be properly 

 compared. This is the commencement of the growth of the second 

 joint of the extremity, and is an exact repetition of the process 

 observed in the growth of the first. 



The new growth, however, does not shoot forward in the line of 

 the axis of the first joint, but forms an obtuse angle with it. 



The growth of this joint generally occupies about seven days, 

 and is finished about the twenty-first after cicatrization, at which 

 time the new extremity has acquired about four lines in length, 

 always, however, depending on the length of the original limb. 



At this time also the site of the angle is observed to form a 

 narrow neck-like depression, the incipient formation of the second 

 articulation. 



The new growth of the second joint is less round and more flat 

 than that of the first, and it bears a less proportion to the size of 

 the second joint than the new growth of the first does to its ori- 

 ginal. It is seldom aline in length. 



About this period the point of the new growth is observed to be 

 flattened and a vascular line is seen upon it, from which soon 



