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Volume 55, Annual Issue (1948)

Front Matter

General Interest Articles

Research

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Herbarium Notes
W. A. Anderson

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Preliminary Report on the Flora of Southeastern Iowa-Part II.
Charles L. Gilly and Malcolm E. McDonald

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The Family Boraginaceae in Iowa - A Preliminary Report
Charles L. Gilly and Evelyn K. O'Brian

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The Cuprous-Cupric Complex in Hydrochloric Acid Solution
Harvey Diehl, P. A. Carlson, D. Christian, E. H. Dewel, M. R. Emerson, F. K. Heumann, and H. W. Standage

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The Antimonous-Antimonic Complex in Hydrochloric Acid
Frank Edwards, Adolf Voigt, and Harvey Diehl

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Raman Tube Filters
Geo. Glockler and John F. Haskin

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An Experimental Study of Repression
D. J. Doland and Charles F. Haner

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Quantification of the Wechsler-Bellevue Vocabulary
Charles F. Haner and Wilse B. Webb

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Abstract of Measurements of Gamma-Ray Energies with the Beta-Ray Spectrometer
E. N. Jensen, L. Jackson Laslet, and William W. Pratt

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A Symbiotic Blepharisma
Leland P. Johnson

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The Leeches of the Okoboji Region
Carol Kenneth Mathers

Back Matter