Results of a Biological Reconnaissance of the Yukon River Region (open access)

Results of a Biological Reconnaissance of the Yukon River Region

Brief summary of the Yukon River region, including itinerary of expedition, faunal districts, new species identified, and mammals and birds present.
Date: October 6, 1900
Creator: Osgood, Wilfred H. & Bishop, Louis B.
System: The UNT Digital Library
Methods and Costs of Gravel and Placer Mining in Alaska (open access)

Methods and Costs of Gravel and Placer Mining in Alaska

From letter of transmittal: It is believed that this report will stimulate the mining industry by making available, in compact form, the accumulated results of the experience of mining men in this field and by directing attention to those mining methods developed in older districts which appear to be adapted to the conditions prevailing in Alaska.
Date: 1905
Creator: Purington, Chester Wells
System: The UNT Digital Library