1907.]  Post-tetanie Tremor in Several Types of Muscle. 43 
statatatatatatatatatatctntaletntstalatnlalanlalalacavaaalaenlotatataenlel nnn FULL 
Fie. 6.—Tail-muscle of Pleuronectes platessa. 5 grammes near axle. Lever as in fig. 1. 
Neef’s hammer, side-wire. Stimulation direct. Time in half-seconds. No complete 
tetanus. Tremor of periodicity, 1°5 to 2 a second. 
Patty 
TT 
Se a a ee ra 
SENEGAL INS SINT TET SESE SS TN TENN TTT TA TT TET NTT SG NH ETT ASNT otto uence 
Fig. 7.—Muscle of abdominal somite, Homarus vulgaris. Lever as in fig. 1. Stimulation 
direct. Break-shocks only. 10 grammes near axle. Stimulation, given by Neef’s 
hammer (side-wire), recorded below time in half-seconds. Tremor from commence- 
ment. Periodicity at first 9 a second, soon becoming 3a second. (Tracing reduced 
to one-half.) 
Fic. 8.—Tremor in a not quite so fresh muscle of lobster, average periodicity 4 to 5a 
second. Stimuli at least 70 a second recorded above the time in half-seconds. 
Conditions as in fig. 7. (Facsimile.) 
