The Geological and Natural History Survey of Minnesota. The fourteenth annual report for the year 1885.

Winchell, N.H.2010-01-062010-01-061886http://purl.umn.edu/56246Summary of the geological and natural history studies carried out in Minnesota during 1885.engeologynatural historyMinnesotalandformsThe Geological and Natural History Survey of Minnesota. The fourteenth annual report for the year 1885.Map