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Shorter Contributions to General Geology, 1928
From introduction: The district discussed in this report embraces the entire northern peninsula of Michigan and the parts of northern Wisconsin and northeastern Minnesota that were covered by a re-advance of the Superior lobe of the Labrador ice sheet late in the Wisconsin stage of glaciation.
Date:
1929
Creator:
Mendenhall, W. C.
System:
The UNT Digital Library
Coal-Washing Investigations: Methods and Tests
From Introduction: "The investigations described in this bulletin are confined to a study of the washing characteristics of bituminous coals. The washing characteristics of coals from many of the most important coal-producing fields of the Eastern and Central States were examined."
Date:
1929
Creator:
Yancey, H. F. & Fraser, Thomas
System:
The UNT Digital Library
Meeting minutes of the Stillwater Chamber of Commerce for January 4, 1929 through December 20, 1930
Typed minutes of the Stillwater Chamber of Commerce for January 4, 1929 - December 20, 1930.
Date:
1929
Creator:
Stillwater Chamber of Commerce (Okla.)
System:
The Gateway to Oklahoma History