lAKER.] AUTHORITIES. 47 



RoHN, 1899. 



In the summer of 1899 Mr. Oscar Rohn, who was attached to a 

 military exploring- expedition under the command of Capt. W. F. 

 Abercrombie, had charge of a detachment which explored the region 

 south and east of Mount Wrangell. A preliminary report on this 

 work was submitted to the War Department and a later and fuller 

 report to the Geological Survey. The last is published in the 

 Twenty -first Annual Report of the Geological Survey, Part II, pp. 

 393-140. 



Russell, 1889-1891. 



Prof. Israel Cook Russell, then of the United States Geological 

 Survey, visited the Yukon valley in 1889 and the Mount St. Elias 

 region in 1890. In the latter year he explored Malaspina glacier and 

 Yakutat bay under the auspices of the National Geographic Society 

 and the United States Geological Survey. This work he continued 

 in 1891. For an account of the work of 1890, see National Geographic 

 Magazine, Vol. Ill, pp. 53-203; and for that of 1891 see Thirteenth 

 Annual Report of the United States Geological Survey, Part II, 

 pp. 1-91. 



Russian American Company, 1799-1867. 



The Russian American Company was chartered on June 8, 1799, for 

 twent}^ years. On September 23, 1821, its charter was renewed for 

 twenty j^ears. In 1844 it was again renewed for twenty 3^ears, to date 

 from January 1, 1842. The unchartered compan}- after 1862 continued, 

 on sufferance, till the purchase of Alaska by the United States, in 1867. 

 Much geographic information was gathered and published l)v officers 

 of the company. Information cited in this dictionary is credited to 

 such officers when known, but otherwise to the company. The prin- 

 cipal reference to the company's results are to a map of Baranof 

 island contained in its report for 1849. 



Russians. 



In this dictionary there are a considerable num])er of names ac- 

 credited to the Russians without being more specific. This was 

 unavoidable because more specific information was lacking. The 

 names so accredited come chiefly from charts issued by the Russian 

 Hydrographic Department. Between 1844 and 1854 a dozen (more or 

 less) charts of northwest America, Bering sea, and the Arctic were 

 issued as parts of a Pacific ocean series and subsequently given new 

 numbers. 



