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  1. Exhibit of the Bureau of chemistry at the Pan-American exposition, Buffalo, New York, 1901. By E. E. Ewell, W. D. Bigelow, and Logan Waller Page.
    By: Ewell, Ervin Edgar, - Bigelow, Willard Dell, - Page, Logan Waller,
    Publication info: Washington,Govt. print. off.,1901.
    Contributed by: University of California Libraries (archive.org)
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  2. The fertilizing value of street sweepings ... by Ervin E. Ewell ...
    By: Ewell, Ervin Edgar,
    Publication info: Washington,Govt. print. off.,1898.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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  3. Foods and food adulterants : Part seventh : tea, coffee and cocoa preparations /
    By: Spencer, Guilford L. - Ewell, Ervin Edgar, - United States.
    Publication info: Washington, D.C. :G.P.O.,1892.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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  4. Methods for the investigation of canceling inks and other stamping inks.
    By: Ewell, Ervin Edgar,
    Publication info: Washington,Govt. print. off.,1903
    Contributed by: University of California Libraries (archive.org)
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  5. Tea, coffee, and cocoa preparations. By Guilford L. Spencer ... with the collaboration of Mr. Ervin E. Ewell ...
    By: Spencer, Guilford L. - Ewell, Ervin Edgar,
    Publication info: Washington,Govt. print. off.,1892.
    Contributed by: University of California Libraries (archive.org)
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