Polezhaev Nikolai

Born in 1857, was educated in St Petersburg 4-th school, then entered the natural separation of physical and mathematical faculty of St. Petersburg University, and in 1879. moved to the Novorossiysk University, where in 1880. received his Ph.D.. Studied zoology at Wц?rzburg Professor Semper in Leipzig Professor Leuckart. In 1881, Mr.. toured the world, and then investigated sponges Professor F. Schulze Graz. In 1885, Mr.. received a Master of Zoology University of St. Petersburg and from 1886 to 1891 was assistant professor in the department of zoology at the same university. In 1889, Mr.. received his doctorate and was sent to the society of scientists in St. Petersburg on Mugojar mountains for faustonisticheskih Research. In 1893 - 1894 he. was assistant professor at the University of St. Vladimir. Polezhayev considered one of the best connoisseurs of sponges, so he was invited to take over the processing spongiologicheskih collections, collected by the expedition Challenger. The principal works: "Ueber d. Sperma u. d. Spermatogenese bei Sycandra raphanus "(" Sitzb. K. Wien. Ak. Wiss. ", 1882)," On the organization and classification of horny sponges "(" Proceedings of the St. Petersburg Society of Natural History, 1884), "Experiments natural system known sponges" (St. Petersburg, 1885, Master's thesis), "Report on the Calcarea coll. By Challenger in 1873 - 76 "and" Report on the Keratosa dredged by Challenger during 1875 - 76 "(in describing the results of the expedition of the Challenger in 1883 and 1885 years), . "Spongiologicheskie etudes" ( "Proceedings of the St. Petersburg Society of Natural History", . 1889), . "Keratosa, . as a natural systematic group (St. Petersburg, . 1889; doctoral thesis),
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