GANGLIA OF RANA 483 
a ol a ee ae Se” ee Le ad OS ae a ea 
SO) (on 110) 16S, (GOSS SON Sy 70) aon G0! 25, 2007/5 s/n) / 
oie i 
Gv. xa 
Be Xr Be Xe R.L| 
V X-- AR -- LXV. 
Fig. 1 A flat reconstruction of the V, VII, VIII, [X and X cerebral ganglia in 
Rana pipiens, 8 mm. in length. The scale at the top of the figures indicates the 
position and number of sections 10u in thickness over which the plot extends. 
General somatic ganglia are shown with horizontal lines, lateral line ganglia with 
cross hatched lines, and visceral ganglia with vertical lines. Special visceral or 
gustatory ganglia are not indicated, as their boundaries could not be determined 
in embryos of this age. > 100. 
