FIBRES ; CONNECTING TISSUE. . 25 



nuclei (PI. IV. figs. VI. and VII.). During -this 

 process of development of the nuclei the blastema 

 underwent no change, and showed no disposition to 

 take on a fibrous arrangement ; it simply diminished 

 in quantity. 



Finally, some observers have asserted that simple 

 amorphous substance, presenting no trace of orga- 

 nization, was capable of undergoing spontaneous 

 transformation into connecting tissue. Thus far we 

 have failed to recognise this mode of development, 

 and, moreover, are indisposed to admit the possibility 

 of the spontaneous generation of a recognisable tis- 

 sue in an entirely unorganized and amorphous mass 

 of substance. 



