The White Russians, intermingled to some extent with Great and Little Russians, Poles and Lithuanians, occupy the upper parts of the W.
They had Lithuanians to the W.; various Finnish tribes, intermingled towards the S.E.
of the Gulf of Finland, in the region of the Livs and Kurs, where they fused to some extent with the Lithuanians and the Letts.
The Lithuanians prevail in Kovno, Vilna and Suwalki; and the Letts, who are, however, more scattered, are chiefly concentrated in Vitebsk, Courland and Livonia.
The Poles and most of the Lithuanians are Roman Catholics.