928 
this quantum had previously been mixed with a small quantity 
(0.1 c¢.c.m.) of human serum. The consequence was (see fig. 16) a 
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very strong rise of the blood-pressure, many times greater than that 
with 0.1 mgr. of adrenalin alone. With the subsequent injections the 
whole of a ec. of human serum was first given alone, to show 
that of itself it had but little effect upon the rise of the bloodpres- 
sure (Fig. 1c) and after this again 0.1 mgr. of adrenalin, dissolved 
in physiological water, was injected. This yielded a rise of blood- 
