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Articles

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Pollen Study in the Gatineau Valley, Quebec
John E. Potzger and Albert Courtemanche

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Pollen from Moss Polsters on the Mat of Lac Shaw Bog, Quebec, Correlated with a Forest Survey
John E. Potzger, Albert Courtemanche, Br. M. Sylvio, and Francis M. Hueber

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The Characeae of Nebraska - Additions and Changes
Fay Kenoyer Daily and Walter Kiener

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Notes on the Algae - IV
William A. Daily