834 
the cocain solution were in themselves indifferent to the nerve. 
This proved to be the case for 0.6 °/, Ringer, for 0.9 °/, Ringer, 
for serum as well as for an emulsion of brain-substance. 
Experiment 1. The liquid used was: 
0.2 ee. hydrochloras cocain (5 °/,) + 4 ¢.c. 0.9°/, Ringer’s fluid, 
Le. a solution of '/, °/, cocain in 0.9°/, Ringer. 
We found: 
Accumulator 2 volts. 
| Reading taken ofthe 
Stimulation at: | inductorium with Control (E”) 
stimulation at (E’) 
3.00 h. 1.96 1.96 
3.02 1.96 1.96 
3.04 1.92 1.96 
3.06 1.92 1.96 
3.08 1.90 1.96 
3.10 1.90 1.96 
3.12 1.88 1.96 
3.14 1.86 1.96 
3.16 en 86, 1.96 
3.18 1.86 1.96 
3.20 1.86 1.96 
3.24 1.82 1.96 
3.26 1.82 1.96 
3.28 1.80 1.96 
3.30 1.80 1.96 
3.32 1.78 1.96 
3.34 1.78 1.96 
3.36 1.74 1.96 
3.38 1.64 1.96 
3.40 1.40 1.96 
3.42 1.38 1.96 
3.44 1.34 1.96 
3.46 1.2 1.96 (muscle still 
responsive). 
No contraction at the strongest current. 
