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Document Type

Research

Abstract

On February 1, 1914, the writer began his duties in connection with the United States Agricultural Experiment Station at Sitka, Alaska. This made necessary a change in thesis subject and at the suggestion of Dr. Pammel, in whose department the major work was taken, the above subject was chosen.

Publication Date

1916

Journal Title

Proceedings of the Iowa Academy of Science

Volume

23

Issue

1

First Page

427

Last Page

482

Copyright

©1916 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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