Effects of Intravenous Injection of Suprarenal Extracts 61 



Fig. 37. — Ettect upon blood-pressure, kidney volume, and flow of urine of injecting suprarenal 

 extract into the vein of a dog. (From Schafer and Herring, Phil. Trans., 1906.) 



A, blood-pressure tracing : B, kidney Tolume change (oncograph) : the full extent of the shrinkage is not recorded ; 

 C, drops of urine marked by magneto-electric signal ; D, time in ten-second intervals ; £, abscissa of blood- 

 pressure and signal of injection. 



a[M^!M^%* 



Fig. 38. — Effect upon blood-pressure and limb volume of injecting suprarenal extract into 



a vein (dog). 



A, time-marking (seconds) ; C, arterial pressure: B, volume changes of left fore limb, nerves intact ; D, volume 

 changes of right fore limb, brachial plexus cat ; E, signal ; the line records abscissa of blood-pressure. 



