100 



NINTH LECTURE. 



They soon present further metamorphoses. These may- 

 be beautifully recognized in the transparent tail of the tad- 

 pole (Fig. 97). It is a sort of budding process. 



Fig. 97. — Development of finer capillaries in the tail of the tadpole ; /, p, protoplasma buds 

 and cords. 



From the parieties of already mature neighboring capilla- 

 ries is supplied a protoplasma, capable of further independent 

 development, in the form of pointed cones (Fig. 97, I, 2, 

 p, p). By their confluence (2) the latter are, at first, trans- 

 formed into solid cords. If, then, the axial portion of the 

 meanwhile enlarged cord melts down, we have the proto- 

 plasma tube (3,P). By a further metamorphosis of the lat- 



