surveyed, ii. [186]

Ob, river territory, i.

[372n]

;

navigable, i. [374];

first mentioned, ii. [157];

Russian navigation to in former times, i. [226], [244], [271];

English vessel stranded at, i. [229n], [256];

vessel stranded east of, i. [271];

Russian expedition to, ii. [183];