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Front Matter

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Comments Concerning the Functions and Needs of the Minnesota Academy of Science
Charles Sheard

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The Education and Counseling of Returned Service Personnel
Horace T. Morse

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Aircraft Electronic Instrumentation
A. P. Upton

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Common Distributional Pattern in Geographical Ranges of Plant Species and the Problem of Center of Origin
C. W. Sharsmith

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Hybridization Between Northern Pike (Esox lucius) and Muskellunge (Esox masquinongy)
Samuel Eddy

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Hemophilia In Man: The Need for Complete Familial Data
Clarence P. Oliver and Eleanor H. Lindeman

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Abstract Papers

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Making Beats Visible
Carl J. Ulrich

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The Theory of the Impulse Function for Oscillatory Mechanical and Electrical Systems
E. L. Hill

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Some Emission Phenomena Observed on Commercial Photocells
Zaboj V. Harvalik

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Abstract Papers

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Back Matter