The Geological and Natural History Survey of Minnesota. The third annual report for the year 1874.

Winchell, N.H.2010-01-062010-01-061874https://hdl.handle.net/11299/56234Summary of the geological and natural history studies in Minnesota during 1874.engeologynatural historyMinnesotalandformsThe Geological and Natural History Survey of Minnesota. The third annual report for the year 1874.Map