RUSSIAN PHYSIOLOGIST; CONDUCTED FAMOUS EXPERIMENT DEMONSTRATING CONDITIONED REFLEX IN DOGS. IVAN PAVLOV. Inscribed copy of Ivan Pavlov’s 1909 lecture at the 12th Congress of Russian natural Scientists and Physicians in Moscow entitled “Natural Science and the Brain” in which he discusses animal adaptation to its external environment and conditioned reflex. Ivan Pavlov has written, in … [ Read More ]
Russia
Tolstoy, Leo
Russian author of War and Peace and Anna Karenina. Bust-length postcard Photograph of Leo Tolstoy, Signed and Dated, “Leo Tolstoy / 24 Febr. 1910” in the lower portion. The photograph by C. Kraft is captioned “Tolstoi.” The black and white photograph measures 3 ½ inches wide by 5 ½ inches high. Matted in ivory ad … [ Read More ]