The Relation between Secretory and Capillary Pressure. 313 

 Table I. 





Salivary 



Arterial 



Venous outflow. 



Dog. Morphine, chloroform 



Cat. A.C.E 



„ Ether j 



140 

 190 

 164 

 157 

 125 

 179 

 160 

 170 

 130 

 160 

 135 

 240 



88 

 98 

 80 

 93 

 110 

 140 

 125 

 125 

 110 

 135 

 110 

 130 



Blood 



flowing. 



Arheria.1 Zero 



Salivary Zero 



Salivary Zero 



Fig. 1.— Tracings from two different dogs, anaesthetised by morphine and chloroform, 

 showing the arterial (carotid) pressures and the secretory pressures of saliva during 

 excitation of the chorda tympani nerve. 



these conditions the blood continues to flow and issues from the vein in a 

 fairly ample stream of a colour more arterial than venous. The gland itself 



VOL. LXXXV. — B. v 



