Surface formations and agricultural conditions of northeastern Minnesota,
Leverett, Frank, 1859-1943.
Surface formations and agricultural conditions of northeastern Minnesota, by Frank Leverett and Frederick W. Sardeson, with a chapter on Climatic conditions of Minnesota by U. G. Purssell. - Minneapolis, The University of Minnesota, 1917. - vi, 72 p. illus. (maps) xv pl. (incl. fold. map in pocket) diagrs. 23 cm. - Minnesota Geological Survey. Bulletin no. 13 . - Bulletin (Minnesota Geological Survey) ; no. 13. .
At head of title: The University of Minnesota. "In cooperation with the United States Geological survey."
gs 17000292
Geology--Minnesota.
Agriculture--Minnesota.
Soils--Minnesota.
Minnesota--Climate.
QE127 / .A22 no. 13
Surface formations and agricultural conditions of northeastern Minnesota, by Frank Leverett and Frederick W. Sardeson, with a chapter on Climatic conditions of Minnesota by U. G. Purssell. - Minneapolis, The University of Minnesota, 1917. - vi, 72 p. illus. (maps) xv pl. (incl. fold. map in pocket) diagrs. 23 cm. - Minnesota Geological Survey. Bulletin no. 13 . - Bulletin (Minnesota Geological Survey) ; no. 13. .
At head of title: The University of Minnesota. "In cooperation with the United States Geological survey."
gs 17000292
Geology--Minnesota.
Agriculture--Minnesota.
Soils--Minnesota.
Minnesota--Climate.
QE127 / .A22 no. 13