Takahashi, Interyiodes on Nerve Fibers. 



179 



When read horizontally, the records in Table 6 show that the 

 length of the internodes increases with the increasing diameter of 

 the fibers. When read vertically however it appears that while 

 at jTg the internodes are always longer than at S^, yet the internodes 

 for fibers with the diameters 5.3^ and 6.3/x at the level T are 

 shorter than those either above or below this level. Comment on 

 this result will be made later. 



Fig. 5 also represents these relations, the measurements at all 

 three levels having been reduced to exactly the same diameter, 

 namely, 5.3/<, 6.3/f and 'J-'^pi. 



Level 3i 



M 

 1000 



mm O 10 SO 4-0 60 SO lOO 120 



150 



Fig. 5. Showing the lengths of the internodes at the levels 5j, T, and Tg, on fibers 5.3/i, 6.3// and 

 l-IH in diameter from Frog 8. The diameters multiplied by 100 are indicated on the limiting verticals. 



In addition to Frog 8, still another specimen. Frog 3, body 

 weight 26 grams, total length 166 mm., was examined in the same 

 way. More than 100 internodes on fibers ranging in diameter 

 from 3-75/^ to 6.3/< were measured at each of the three levels aSj, 

 r and T,. 



The measurements are treated as before, and are presented in 

 Table 7. 



The table reads regularly, both horizontally and vertically, and 

 thus shows a steady increase in the length of the internodes, as 



