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Volume 1, Part 2, 1890-1891; (1887) - (1893)

Front Matter

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Title pages
Herbert Osborn

General Interest Article

Research

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Evolution of Strophostylus p. 25-26
Charles R. Keyes

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Notes on the Redrock Sandstone p. 26-27
Charles R. Keyes

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Brick and Other Clays of Des Moines p. 29-29
Charles R. Keyes

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Aluminum in Iowa p. 30-30
Charles R. Keyes

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On a Quaternary Section Eight Miles South-East of Des Moines, Iowa p. 30-30
Charles R. Keyes and R. Ellsworth Call

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Notes on Missouri Minerals p. 33-35
Erasmus Haworth

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Prismatic Sandstone from Missouri p. 36-37
Erasmus Haworth

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The Fishes of the Des Moines Basin p. 43-56
R. Ellsworth Call

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Artesian Wells in Iowa
R. Ellsworth Call

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Aboriginal Rock-Mortars p. 64-66
H. L. Bruner

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The Gas Wells near Letts, Iowa p. 68-70
F. M. Witter

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A New Distilling Flask for Use in the Kjeldahl Process p. 71-72
G. E. Patrick and D. B. Bisbee

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Woody Plants of Western Wisconsin p. 76-80
L. H. Pammel

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Phaenological Notes p. 87-88
L. H. Pammel

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Corn Smut p. 95-96
[L. H. Pammel]

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Systematic Zoology in Colleges p. 102-107
C. C. Nutting

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Oviposition of Anomalon Sp. p. 107-107
C. P. Gillette

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The Gall-Producing Cynipidae of Iowa p. 110-114
C. P. Gillette

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Abnormal Pelage in Lepus sylvaticus p. 116-116
Herbert Osborn

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On the Orthopterous Fauna of Iowa p. 116-120
Herbert Osborn

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Catalogue of the Hemiptera of Iowa p. 120-131
Herbert Osborn

Back Matter

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Index p. 133-134

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Errata p. 136-136