Note 119 — Chapter XVII · BARRIERS TO DISPERSION OF RIVER FISHES
Reading edition
Evermann, A Reconnoissance of the Streams and Lakes of Western Montana and Northwestern Wyoming, in Bull. U. S. Fish. Comm., XI, 1891, 24-28, pls. I and II; Jordan, The Story of a Strange Land, in Pop. Sci. Monthly, Feb., 1892, 447-458; Evermann, Two-Ocean Pass, in Proc. Ind. Ac. Sci., 1892, 29-34, pl. I; Evermann, Two-Ocean Pass, in Pop. Sci. Monthly, June, 1895, with plate.