PLATE 2 



EXPLANATION OF FIGURES 



5 Fiber of the nervus ischiadicus of fowl No. G. No multiplication of nuclei 

 of the neurilemma sheath is seen. Marchi method. Zeiss 4X4 nun. 



6 Photomicrograph of section of nervus ischiadicus of fowl No. 9, G — 52 

 days on polished rice and calcium lactate, a, a' segments of discontinuous axis 

 cylinders enclosed within enlarged portions (globules of degenerated myelin) of 

 the fiber. Mallory's phosphomolybdic acid hematoxylin. Zeiss 4X2 mm. oil 

 immersion. 



7 Photomicrograph of teased preparation of nervus ischiadicus of fowl No. 6 

 — 24 days on polished rice. Several stages of degeneration are shown. Fiber, 

 a, showing advanced degeneration lies side by side with one showing only slight 

 degenerative change. Marchi method. Zeiss 4X4 mm. 



98 



