Note 5 — Chapter XXIV · THE LENA.
Reading edition
The difference of latitude, as pointed out by Mr. Trelawney Saunders, between Verko (or upper) Lensk (54° 8′) and Kirensk (57° 47′) is only 3° 39′, or 219 geographical miles. The latter place is but little east of north from the former, so that the 500 miles must be mainly due to the windings of the stream.