O.

Oak-tree, [100].

Oats, [264], [296].

Oboian, [122], [125], [137].

Obzinkovi, [200].

Ochakiv, [136], [337].

Oder, [234].

Odessa, [16] ff., [86] ff., [95], [135] f., [172], [250], [267], [286], [288] ff., [291], [295], [299] f., [306], [334], [336].

Oginski Canal, [64].

Ohonovsky, [168].

Oil production, [289].

Okhrimovich, [131]. [[360]]

Okhtirka, [269], [285] ff., [330].

Oleh, [243].

Oleshki, [251], [267], [284], [336].

Olexandria, [326].

Olexandrivsk, [139], [141], [286], [290], [336], [340].

Olexiyivka, [332].

Olhopil, [135], [284], [322].

Oligocene, [276].

Olviopol, [136].

Ondava, [65].

Ontario, [127].

Opilye, [40].

Opir, [27] ff., [67], [311].

Oposhnia, [329].

Oprishki, [224].

Orel, [74], [81], [112], [250], [329].

Orenburg, [126], [143].

Orhuv, [119], [136], [323].

Orianda, [338].

Orient, [166], [181], [214], [218], [229].

Orsha, [72].

Oskol, [331].

Oslava, [26], [310].

Ossetians, [139].

Oster, [284], [287], [327].

Ostroh, [134], [320].

Ostroh, Academy of Sciences of, [320].

Ostrohosk, [122], [137], [332].

Ottinia, [315].

Overland communication, [300] f.

Ovruch, [48], [134], [145].

Oyster, [249].

Ozokerite, [279] f., [313].

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