124 
GEORGE W. BARTELMEZ 
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Y, 
Figs. 7-9 Drawn from the brain of an adult Ameiurus melas 12 cm. long, 
stained with toluidin blue and erythrosin, magnified 630 diameters to show the 
relative sizes of a Mauthner’s cell, a Miiller’s cell and the large cells of the nucleus 
motorius tegmenti and the similarity of the Nissl bodies in all three types. 
