no 
Scientific Proceedings (43). 
redka's vaccine) and protective inoculations of serum, all the injec- 
tions being given subcutaneously to make them more comparable 
with those in man. When later, these vaccinated mice were fed 
with living cultures, no protection was shown, sickness usually 
fatal occurred exactly as in the untreated cases. After an interval, 
all of the mice that recovered were re-fed with the living culture 
and all contracted the disease again, showing that no immunity 
had been established. 
Rats being less susceptible than mice, the experiments were 
repeated upon them. The vaccinated animals when fed with 
living cultures were not protected but those which had been 
previously fed with small doses of the living virus, were completely 
immune to subsequent feeding with large doses. Experiments 
are now being carried out to see if these rats are also immune 
against intra-peritoneal and sub-cutaneous inoculations and if 
it is a strictly specific immunity. 
Experiments on treatment, specific and otherwise, gave negative 
result in mice; in rats the investigations are still being carried on. 
67 (592) 
The relationship of the left suprarenal capsule to the sugar 
production of the liver in dogs. 
By J. J. R. MACLEOD, 0. D. CHRISTIE and R. G. PEARCE. 
[From the Physiological Laboratory, Western Reserve University, 
Cleveland, 0 ] 
We have obtained certain results bearing on the relationship 
between the left suprarenal capsule and the left splanchnic nerve- 
control of the glycogenic function of the liver which, in view of the 
topical interest in this subject, we believe it well to report at pres- 
ent, especially since it will take some considerable time to complete 
the investigation of which they form a part. The percentage 
amount of reducing substance in the blood of the inferior vena 
cava, opposite the hepatic veins, was determined by Reid's 
method at varying periods after stimulation of the left splanchnic 
nerve. In the first series of results given in the table the left 
suprarenal capsule was intact; in the second series this gland was 
excised. 
