JOERG, W.L.G. (1885-1952), editor. Problems of Polar Research. A Series of Papers by Thirty-One Authors. New York: 1928. 8vo. Color-printed folding map, numerous in-text charts, diagrams, and graphs. -- THORDARSON, Matthias. The Vinland Voyages. With an Introduction by V. Stefansson. New York, 1930. 8vo. Frontispiece, numerous maps and plates. FIRST ENGLISH EDITION. -- [BERING, Vitus J. (1681-1741)]; GOLDER, Frank A. (1877-1929), editor. Bering's Voyages. An Account of the Efforts of the Russians to Determine the Relation of Asia and America. New York, 1935. 2 volumes, 8vo. 4 folding maps and numerous plates. Later reprint. -- BOYD, Louise Arner (1887-1972), et al. The Fiord Region of East Greenland. New York, 1935. 2 volumes (comprising one text volume and one portfolio of plates), 8vo. Frontispiece, numerous plates and maps (including 14 folding maps loose in portfolio as issued). - Another copy. -- BOYD, Louise Arner, et al. The Coast of Northeast Greenland, with Hydrographic Studies of the Greenland Sea. The Louise A. Boyd Arctic Expeditions of 1937, 1938. New York, 1948. 2 volumes (comprising one text volume and one portfolio of plates), 8vo. 12 folding plates and 7 charts in portfolio, numerous half-tones and plates (several loose in portfolio as issued). -- Together, 6 works in 10 volumes, all FIRST EDITIONS, except where indicated, all in original publisher's cloth except where indicated, condition generally good.