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Volume 11, Number 11 (1930)

Full Issue

Articles

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From Plastic Clay p. 473-482
Marie Haefner

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George H. Yewell p. 483-498
Mildred W. Pelzer

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J. N. Ding p. 499-514
Ruth A. Gallaher

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Comment p. 515-516
John Ely Briggs

Edited by John Ely Briggs