Moscow: Priroda, 1917. Second edition. In original decorated cloth.  leaf with portrait of the author; XVI, 230, (1),  p. In fine condition.
One of the most important books in the history of biology and neurology by Ivan Petrovich Pavlov (1849–1936) the Russian psychologist and physiologist. He performed and directed experiments and did research for 12 years on digestion before publishing his work “The work of the Digestive Glands” in 1897, that earned him the Nobel Prize in Physiology or Medicine in 1904. [Dibner 135., Garrison and Morton 1022.].