PLATE 4 



EXPLANATION OP FIGURES 



13 Photomicrograph of a section of the nervus ischiadicus of fowl No. 38 

 — 108 days in regeneration and 49 days after recovery was apparently com- 

 plete — droplets or globules of degenerated myelin are to be seen in every fiber. 

 a resembles a fiber in advanced degeneration. To be studied in connection with 

 figures 14, 15 and 16, showing the slowness of absorption of degenerated myelin. 

 Marchi method. Zeiss 2 X 16 mm. 



14 Teased preparation of nervus ischiadicus of fowl No. 54 — 171 days in 

 regeneration. Marchi method. Zeiss 2 X 16 mm. 



15 Teased preparation of a motor root of the nervus ischiadicus of fowl 

 No 57 — 1 year and 14 clays in regeneration — compare with figure 16. Marchi 

 method. Zeiss 2 X 16 mm. 



16 Teased preparation of sensory root of same nerve as figure 15. Marchi 

 method. Zeiss 2 X 16 mm. 



102 



