Vol. 22, No. 2 (April 1939)

Table of Contents

Literature Review Articles

Two New Thysanoptera from Mexico
J. R. Watson
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17-20
Arthur P. Jacot
Editors
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20
The Physiological Effects of Mineral Oils on Citrus
L. W. Ziegler
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21-30
Some Ecological Notes on the Lubberly Locust--Romalea Micropter Beauv.
J. R. Watson, H. E. Bratley
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31
Back Matter
Editors
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