Grumm-Grshimailo.
Matusovski (1870)* Ney Elias (1872–1873)* Nikolaj Mihajlovič Przevalskij (1870–1872 in 1876–1877)* Zosnovsky (1875)* Mikhail V. Pevtsov (1878)* Grigory Potanin (1877 in 1884–1886)* Count Béla Széchenyi in Lajos Lóczy (1879–1880)* Bratje G. E. Grumm-Grshimailo (1889–1890) in ?