“…The electro-olfactogram.-Ottoson (124) claims that the slow negative potential (EOG), which he recorded from the surface of the frog's olfactory mucosa in response to odor stimulation, is a generator potential (Le., a slow graded depolarization which triggers the nerve impulse) . Rej ection thresholds for QHCI were markedly elevated and preferen tial intake of sucrose, saccharin, and NaCl solutions was attenuated or eliminated.…”