Abstract
The specific dynamic action of amino acid was experimentally studied in relation to the hypothalamus.
1. The basal metabolism of the rabbit is considerably augmented by the stimulation of the sympathetic region, but that of the parasympathetic gives no alteration.
2. Either the stimulation of the sympathetic region or of the parasympathetic results in a lesser specific dynamic action of glycine, amounting to roughly 2/3 of the normal.
