1 Pallas, Peter Simon, Masterson, James R. Bering's successors, 1745-1780; contributions of Peter Simon Pallas to the history of Russian exploration toward Alaska, by James R. Masterson and Helen Brower Seattle, 1948 Univ. of Washington Press vii, 96 p. Articles from Neue nordische Beytrage, v. 1-4, 1781-83, tr. and annotated by J. R. Masterson and Helen Brower. "Reprinted from Pacific Northwest quarterly, vol. 38, 1 and 2 [1947]"