538 HENRY H. DONALDSON AND G. NAGASAKA 
ee ee ee 
ed Sg 
ie) 
Nes | ee BODY |WEIGHT 
0 w® © 60 80 100 {20 140 160 180 200 220 240 260 280 300 320 gms. 
Chart 2 shows on body weight the graphs, in micra, for the 
spinal ganglion cells and their nuclei. C, cell body. JN, nucleus. 
