Sterlet They may require special food such as sterlet sticks, as they are unable to digest the vegetable proteins usually found in commercial fish foods. In Russia, it is held in high esteem on account of its excellent flesh, contributing also to the best kinds of caviar and isinglass. Sterlet The sterlet ("Acipenser ruthenus") is a relatively small species of sturgeon from Eurasia native to large rivers that flow into the Black Sea, Azov Sea, and Caspian Sea, as well as rivers in Siberia as far east as Yenisei. Populations migrating between fresh and salt water (anadromous) have been extirpated. Due
Caudron Types M and N Caudron Types M and N The Caudron Types M and N were small, fast French sports monoplanes, flown 1911–13 under a wide range of engine powers. There was also a military version. Although almost all the aircraft designed by the Caudron brothers in the twenty years from their first attempts in 1908 were biplanes, they did in 1911-2 produce three monoplane types. These were the single seat racing Types M and N and the related but somewhat larger Type M2 military version. The Types M and N were very similar and, though the designations were reported together with some details