Department of Human and Animal Physiology, V. I. Ul''yanov-Lenin Kazan'' University (Presented by Active Member of the Academy of Medical Sciences of the USSR, V. V. Zakusov). Translated from Byulleten'' Éksprimental''noi Biologii i Meditsiny, Vol. 64, No. 7, pp. 41–43, July, 1967.