120 GEORGE W. BARTELMEZ 
Figs. 8-5 Three photographs from a transverse seriesof the brain of a young 
adult Ameiurus melas 83 mm. long, stained with toluidin blue and erythrosin; 
magnified 38.2 diameters. The right sideis the untouched photograph, the left 
is printed lightly and certain details drawn in with ink. The levels of the 
sections are indicated in figure 2. 
Fig. 3 A section taken through the caudal end of the cerebellum including 
the axone and axone cap of Mauthner’s cell on the right side and the middle of 
the left cell (which is projected entire upon this level). The dendrites in this 
case could be traced through 13 of the 10 u sections as the series was cut oblique 
to the plane in which they lie. The more lateral of the ventral dendrites is the 
inferior ventral dendrite, the more medial, the superior ventral dendrite. 
