Floyed was too small. conclusions regarding the fate of this acid must be withheld.Until such studies are completed definite TABLE I.Fasting controls Sodium propionate " butyrate ' ' valerate ' ' eapr oa t e * These are the ra No. of Liver Average Animals Glycogen, entire body except liver Average % 0.070 0.313 0.063 0.096 0.084 (0.036-0.093)" (0.092-1.370) (0.057-0.069) (0.075-0.l22) (0.046-0.098) ges in the individual experiments. 0.067 0.077 0.054 0.076 0.074 (0.049 -0.092) (0.061-0.104) (0.043-0.065) (0.064-0.0$1) (0.059-0.071)
Summary
The early stage of resistance to infection by a type I pneumococcus may be elicited within 48 to 72 hours in response to intracutaneous treatment with the homologous type I vaccine, but not in response to the heterologous type III vaccine.
Small quantities of mouse-protective substances are demonstrable in the blood of slightly more than half of the resistant animals by the sixth and tenth days following a single intracutaneous immunizing injection; they are not present in demonstrable quantities as early as the second and third days following this treatment. No increase in agglutinins could be demonstrated during the early stage of resistance.
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