Abstract
1. The glycolytic action of blood in the rabbit was accelerated by an injection of bovine pineal extract, and such acceleration was recognized 3 hours after the injection, and it was more remarkable at a later time.
2. It was observed that the inorganic phosphate level in serum was lowered immediately after an injection of bovine pineal extract, and then elevated in a few days thereafter, while cerebral extract did not show such an action.
3. It was found that the serum inorganic phosphate level expected to be lowered by intravenous administration of glucose was markedly elevated a week after a simultaneous injection of pineal extract and glucose.