Abstract
The extract from the blood of rabbits, prepared by means of the Barsoum-Gaddum method or a simple trichloracetic acid method. The abilities of the extract from the blood of rabbits to augment the guineapig intestine segment and to decrease the blood pressure in the cat, urethanized and atropinized, are not influenced by bleeding, cooling the animal, or adrenaline injection. It is also true of the ability of the extracts of causing the gastric secretion (the blood of cooling experiment was not tried for this dog with the Pavlov gastric pouch).
