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The effects of changes in osmolality and sodium concentration on angiotensin‐induced drinking and excretion in the pigeon

1. The pigeon drank copiously after a short latency in response to intracerebro‐ventricular (I.C.V.) infusion of angiotensin II dissolved in isotonic NaCl. There were small, insignificant increases in urinary excertion so that the increased water intake caused the pigeon to go into positive fluid balance. Water was chosen in preference to 0·3 M‐NaCl, which was also available to drink in these experiments.