*
A part of this paper is taken from a dissertation submitted to the Graduate School of Brown University, June, 1955, in partial fulfillment of the requirements for the Ph.D. degree in the Department of Biology.
This work was supported in part by a grant from the National Cancer Institute, U.S. Public Health Service, administered by Dr. J. Walter Wilson, Brown University.
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©1959 American Association for Cancer Research.
1959
Cancer Research, Inc.