1881.   Havard, V., Dr., collected a few plants at Nushagak in August of that year.
        1881-97.   Muir, John, accompanied the revenue steamer Corwin on a trip in search of the De Long Expedition. The Captain of the Corwin, Calvin L. Hooper, and the surgeon of the ship, Dr. Irving C. Rosse, also collected a few specimens. Corwin left Unalaska at end of May, visited St. Lawrence I. May 28, June 8 and July 4; St. Michael; Golofnin Bay July 10; Cape Prince of Wales; Kotzebue Sd.; Cape Thompson July 19; a place 20 miles E. of Cape Lisbnrne; Wrangell I. Aug. 12 and Herald I.
A report on the botanical collections was published by E. W. NELSON (in »Letter transmitting report of the Cruise of the Corwin in Alaska and the Northwest Arctic Ocean in 1881» Treas. Doc. 429, 1883). The same report was again published in 1917 by W. F. BADÈ under the title »The Cruise of the Corwin». The botanical collections, which were determined by Dr. ASA GRAY, were once more published in Torreya 18 (1918) p. 187. They are now in Gray Herb.  In 1897 MUIR again visited Alaska together with C. S. SARGENT.
        1881.   McKay, Charles L., weather observer at Nushagak, collected about that place in July and August 1881. Collections in Nat.Herb., Washington. A list of the specimens was published by KNOWLTON (Proc. U. S. Nat. Mus. 8, 1885).
        1881-1882.   Krause, Arthur, (and Krause, Aurel) of the Bremen Geogr. Soc. collected in 1882 at the head of Lynn Canal and at the passes to the Yukon a large collection (494 species of vascular plants). The first series was kept in the Herbarium of Dr. F. KURTZ, duplicates are preserved in Bot. Mus. Berlin-Dahlem (598 sp.), Uppsala (375 sp.), Leningrad (227 sp.) and Breslau (134 sp.). The collections were published by KURTZ (ENGLER'S Bot. Jahrb. 19, 1895). A report of the journey was published by ARTHUR KRAUSE in Zeitschr. Ges. f. Erdkunde Bd 18 (1883). AUREL KRAUSE published an ethnographical paper (Die Tlinkit-Indianer; Jena 1885), where references to the use of indigenous plants by the natives are found.
        The KRAUSE brothers arrived at Juneau Dec. 15, 1881 and proceeded to Chilkoot, where they stayed till April 1882, when AUREL KRAUSE returned to Europe. ARTHUR KRAUSE continued to collect plants and visited Dejähfjord (=Dyea-, Thaiya-inlet) May 17; Portage Bay (=Haines) May 21; Dejäh (=Dyea) May 24; Dejähpass (Chilkoot Pass) May 27-28; Schlütlüchroa (=Lake Lindeman) May 30; Dejäh June 4; Portage Bay June 9-16 (with excursions to Jendestakä