PLATE VII. 
REGENERATION OF CONNECTIVE TISSUE AND NERVES. 
Fic. 26. Regeneration, 10 days, 2 hours. Shows inward proliferation of 
epidermal cells to form a sheet of connective tissue (ic) across the segment 
(ineropodite). > 417. 
Fig. 27. Regeneration, 11 days, 10 hours. A later stage in the differentia- 
tion of the connective tissue (in the meropodite) showing vacuolation and 
infiltration of blood plasm (6). < 834. 
Fic. 28. Regeneration, 5 days, 10 hours. Proliferation of epidermal cells 
(e) in the formation of a nerve fiber (nm). 582. 
Fie. 29. A stage in the differentiation of the nerve fiber showing a nucle- 
ated sheath and axial core of delicate neurofibrille (nf) in the axis cylinder. 
At the periphery of this core of fibrille may be observed two heavier fibrillz. 
< 750. : 
Ilia. 30. A stage of the regenerating nerve fiber in which the heavier neu- 
rofibrillae predominate. >< 750. (Figures 29 and 30 were made from sections 
of the regenerating chela of a two-year-old lobster in which the neurofibrillz 
were more sharply defined than in preparations from younger specimens. ) 
