ii CHANGE OF FORM IX MUSCLK DURING ACTIVITY 143 



unbroken. On the other hand, both in frog and rabbit very 

 obvious oscillations (though of strikingly different rhythm) were 

 produced by strychnia spasms. Fig. 04 shows that they vary 

 in the frog from '2 to .> per sec.: Fig. (>."> from 10 to 19 in the 



FIG. 65. Strychnia tetanus of Rabbit, (v. Limbeck.) 



rabbit. Towards the end of the spasm the oscillations became 

 gradually less frequent, and are often grouped together (Fig. 65). 



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