Title: Obzor di︠e︡i︠a︡tel'nosti S.-Peterburgskago obshchestva estestvoispytateleĭ za pervoe dvat︠s︡atipi︠a︡tili︠e︡tie ego sushchestvovanii︠a︡, 1868-1893
Subjects: Science, Societies