The Morphology of Functional Activity in the Ganglion Gells etc. 509 
the more advanced activity of the stimulated animals, the number of 
cells in each group from the one ganglion was too small to make any 
averages or to demonstrate conclusively certain finer intermediate shifts, 
which, however, were indicated by theh- presence in the same relative 
Position in the course of activity if they appeared at all. The next step, 
therefore, was to measure a large number of ceUs of the same sub-group 
