science · 24 December 1950 · 75 years ago
death
Died 24 Dec 1950 at age 74 (born 14 Feb 1876).
Russian geographer and zoologist who established the foundations of limnology in Russia with his systematic studies on the physical, chemical, and biological conditions of fresh waters, particularly of lakes. Important, too, was his work in ichthyology, which yielded much useful data on the paleontology, anatomy, and embryology of fishes in Russia.
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