620 



RESPIRATORY RATE OF SCIATIC NERVE OF FROG 



put by Stimulation, although the nerve in some cases was tetanized 

 for 30 minutes. In Table III are shown the figures for four experi- 

 ments. A series of controls was made with sartorius muscle. The 



TABLE in. 



Effects of Stimulation on the Rate of Carbon Dioxide Production in Nerve and 

 I Muscle. Individual Animal Denoted by Letters on the Left. 

 Temperature 17-19°C. 



Sciatic nerves. 



Condition . 



(Resting. . . 

 Stimulated 

 Resting 



g fResting.... 

 \ Stimulated 



(Resting 

 Stimulated 

 Resting 



{Resting 

 Stimulated 

 Resting 



Rate. 



0.21 

 0.17 

 0.12 



0.055 

 0.048 



0.098 

 0.107 

 0.092 



0.17 



0.067 



0.062 



muscle was put on the electrode hooks and allowed to contract 

 isotonically during stimulation. Measurements made during con- 

 traction showed no increase, and usually a slight decrease in respira- 



