Fig. 11. Intestine tracings. At 24, Ringer's solution was replaced by indifferent 

 (jugular) blood from a dog and this at 25 by a suprarenal blood specimen collected 

 during sciatic stimulation. At 27, Ringer's solution was replaced by jugular blood and 

 this at 28 by a suprarenal blood specimen collected without stimulation of nerves. 

 (Reduced to two-thirds.) (After Stewart and Rogoff, J. Exper. Med.} 



Fig. 12. Intestine tracings. At 32, Ringer's solution was replaced by indifferent 

 (jugular) blood and this at 33 by a suprarenal blood specimen (the third) collected 

 (in a cat) without asphyxia. At" 34, Ringer's solution was replaced by jugular blood 

 and this at 35 by a suprarenal blood specimen (the 4th) collected during asphyxia. At 

 36, Ringer's solution was replaced by jugular blood and this at 37 by another suprarenal 

 blood specimen (the fifth) collected without asphyxia. All the blood specimens were 

 diluted with 16 volumes Ringer's solution before application to the segment. The assay 

 showed that the differences in the concentration of epinephrin in the various specimens 

 were balanced by the differences in the rate of flow, so that no influence of asphyxia 

 upon the rate of output of epinephrin could be demonstrated. (Reduced to two-thirds.) 

 (After Stewart and Rogoff, J. Pharm. & Esoper. Therap.) 



141 



