An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
As a library, NLM provides access to scientific literature. Inclusion in an NLM database does not imply endorsement of, or agreement with,
the contents by NLM or the National Institutes of Health.
Learn more:
PMC Disclaimer
|
PMC Copyright Notice
1The Walter B. James Laboratory for Biophysics of The Long Island Biological Association and the Department of Genetics of the Carnegie Institution of Washington, Cold Spring Harbor, N. Y.
1The Walter B. James Laboratory for Biophysics of The Long Island Biological Association and the Department of Genetics of the Carnegie Institution of Washington, Cold Spring Harbor, N. Y.
1The Walter B. James Laboratory for Biophysics of The Long Island Biological Association and the Department of Genetics of the Carnegie Institution of Washington, Cold Spring Harbor, N. Y.
1
This work has been supported by a grant to Hugo Fricke by the Radiation Committee of the National Research Council. We are indebted to Dr. M. T. Jones for his assistance in the physical measurements.