40 _ "Dr. D. F. Harris. On the Occurrence of — [Feb. 15, 
gastrocnemius was attached in the usual way to a bell-crank lever which 
carried a 10-gramme weight, 
TENET 
Fic. 28.—Portion taken from middle of record of post-tetanic tremor several minutes 
after commencement. (Facsimile.) 
un ECU enn 
TATA EMV TYTNNT 
Taree ; M SoS Au i N NTN Sao OSS 
Fic. 3.—Flexor sublimis digitorum (homo) ; sponge-electrodes. Neef’s hammer. Helmholtz side- 
wire in primary coil. Porter’s ergograph-spring as recorder. Stimulation recorded below 
time in half-seconds. Tremor maintained for 30 minutes. Average periodicity 5 to 6a 
second. (Facsimile.) 
TATA ALT ATAU LTS RET Gao TA TEN A ST 
Fic. 4.—Gastrocnemius, kitten (pithed, artificial respiration). Complete tetanus (on 
direct stimulation) suddenly breaking off into post-tetanic tremor. 
The animal was pithed, artificial respiration was used, and very little blood 
lost in preparing the muscle. With indirect stimulation, the muscle exhibited 
