Contributions to the natural history of Alaska. Results of investigations ... in the Yukon district and the Aleutian islands; conducted under the auspices of the Signal service, United States Army, extending from May, 1874, to August, 1881 ...
== {{int:filedesc}} == {{BHL | title = Contributions to the natural history of Alaska. Results of investigations ... in the Yukon district and the Aleutian islands; conducted under the auspices of the Signal service, United States Army, extending from...