118 JOURNAL OF COMPARATIVE NEUROLOGY. 
ERRATA. 
Page 54, line 15 from the bottom, for 7. Rosenthal, read D. Rosenthal. 
Page 59, lines 11, 12 and 13, for mm. read mm’. 
Page 60, line 12 from bottom, for 56.39, read 56.319. 
Page 63, line 14 for Since the magnification used, read Since the magnt- 
fication of the objective used. 
