micra DIAMETERS OF FIBERS AND AXES IN VENTRAL ROOT AT B. 
Seen ot al 
200 F 
175 
150 
Bah | 
40.0 + + Siar: Ae 
15 ee ea | ae 
50 | | : to 
25/- + | + i I. . 
ASSET NC ae Ney TL || | aopy|weranr 
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 gms. 
micra DIAMETERS OF FIBERS AND AXES /N DORSAL ROOT AT C. . 
| 
200 
{T5 
15.0; 
0 4H BODY |\WEIG UTS al 
0 2 40 60 80 400 120 140 {60 180 200 220 AO 260 280 300 320 gms. 
micra. D/AME TERS OF FIBERS AND AXES. SLIGHTLY Dis TAL TO SPINAL Es 
= ane Tiled The ee aalls T 
=F 1 + 3 + D = 
eas 
] | ae +|A 
sel ies maces 
ie Oe 
25 <I Sia = are ; 
| 
0 he | |__| BoDy| WEIGHT 
0 20 40 60 80 100 {20 140 {60 180 200 220 240 260 280 300 320 pms. 
Chart 1 shows on body weight the graphs in micra for the 
diameters of the fibers and their axes in the ventral root attB, 
in the dorsal root at C, and in the nerve just distal to the spinal 
ganglion at A. F, entire fiber; A, axis. 
537 
THE JOURNAL OF COMPARATIVE NEUROLOGY, VOL. 29, No. 5 
