PLATE 2 
EXPLANATION OF FIGURES 
4° Longitudinal section of earthworm killed two hours and fifteen minutes 
after section of the nerve. The plug has formed a definite strand between the 
ends of the cord, and the beginnings of the migration and growth of nerve ele- 
ments from the ends of the cord are apparent. Preserved by the Hardesty method 
no; IF GK 107 
5 longitudinal section of earthworm killed one day and twenty-one hours 
after section of the nerve. This shows growth of the plug in relation to the 
various layers of the body. The wound is entirely covered by the epithelium. 
Iron haematoxylin and orange G. XX 107. 
