452 HODGE. [Vor. IX. 
At end of desired time both control and stimulated ganglia 
were placed together in osmic acid and teased in glycerine for 
further study and preservation. 
In all, 33 experiments have been made. These have varied 
in duration from 15 minutes to 6 days. As formerly reported,! 
they were divided into a winter series, made between Nov. 25, 
1892, and Dec. 24, and a summer series, made from June 14 
Fic. 2.— SETTING OF APPARATUS FOR GANGLION CELL STIMULATION. 
I, Flask of normal solution. 
2,2' Glass syphons which lead solution to edge of coverslip. 
3,3 Beaker to catch drip. 
4,4 Stage electrodes in position. 
55 Drawing stand to hold card at level of stage. 
6, Wires from right-hand microscope to secondary coil. 
to Sept. 3, 1893. Since no marked difference in results has 
borne out this division, I have substituted for it a grouping of 
the experiments according to their purpose and nature. It is 
intended to give in the following table a condensed statement 
of the whole research. Each experiment bears its date, but 
for convenience of reference the numbers have been given to 
the experiments as they stand in the table. The time of day 
1 Pan-American Congress, Physiological Section, Sept., 1893. 
