304 FRANCIS A. HULST. 



EXPLANATION OF PLATE XI. 



FIG. I. Representing a small portion of a muscle surrounded by an increased 

 amount of granular material in which are seen, besides a single enlarged and degen- 

 erate nucleus n, several small mesodermic phagocytes ph. 



FIG. 2. The section shows a mass of sarcolyted and engorged phagocytes, the 

 former undergoing destructive changes both within and without the cell. 



FIG. 3. Similar to Fig. 2, though showing several isolated phagocytes with phago- 

 cytes ph with nuclei either centrally placed or crowded to the periphery. To the 

 left is seen a formless mass of detritus. 



FIG. 4. Showing final stage of the regenerated muscle fiber with striations. 



FIG. 5. Showing the beginning of the formation of the new muscles of the adult. 

 A proliferation of cells from the imaginal disc and the arrangement of the protoplasm 

 into the form of fibers. 



FIG. 6. This shows a later stage than Fig. 5, with an increase in the amount of 

 protoplasm and the arrangement of the nuclei to the sides. 



