1. At the end of his life Menetries was studying mostly butterflies which are therefore in a better state of preservation than other insect orders. When he died at the beginning of 1861 his successor A.F.

Это произошло потому, что Николай I, напуганный революционным движением 1848 г. в Европе, стал бояться любых, даже сугубо научных обществ и собраний.