56 



Scientific Proceedings (117). 



27 (1774) 



On the relation of blood-volume to the nutrition of the tissues. 



II. The effects of hemorrhage and subsequent injections of gum- 



saline upon the volume-flow of blood through 

 the striated muscle of the dog. 



By ROBERT GESELL. 



[From the Department oj Physiology, University of 

 California, Berkeley, California.] 



The effects of blood-volume upon the volume-flow of blood 

 were studied by means of the drop method. While in some 

 animals hemorrhage amounting to 1 per cent, of the body weight 

 had a relatively small effect, in many animals the same or smaller 

 hemorrhage markedly decreased the volume-flow of blood. Sub- 

 sequent injections of a 6 per cent, suspension of gum in a 0.9 per 

 cent, sodium chloride solution augmented the flow out of all 

 proportion to the dilution entailed. 



28 (1775) 



On the relation of blood-volume to the nutrition of the tissues. 



III. The effects of hemorrhage and subsequent injection of gum- 



saline upon the response of the sartorius muscle 

 of the dog to rapid electrical stimulation. 



By ROBERT GESELL. 



[From the Department of Physiology, University of 

 California, Berkeley, California.] 



By comparing fatigue curves elicited by equal periods of 

 stimulation of the sartorius muscle, we found that hemorrhage 

 had a detrimental effect upon the endurance of the muscle, that 

 hemorrhage amounting to 1 per cent, of the body weight or less 

 may decrease the response of the muscle to stimulation. Sub- 

 sequent injection of gum-saline decidedly improved the response 

 of the muscle to further stimulation. 



