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SECTION O (AGRICULTURE). **AMERICAN SOCIETY OF AGRONOMY. *SOCIETY OF AMERICAN FORESTERS. **AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE. †POTATO ASSOCIATION OF AMERICA. GENETICISTS INTERESTED IN AGRICULTURE. CROP PROTECTION INSTITUTE

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Science  05 Feb 1932:
Vol. 75, Issue 1936, pp. 168-170
DOI: 10.1126/science.75.1936.168

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