Journal of Research of the U.S. Geological Survey. September-October 1973. Volume 1, Number 5, pp. 501–625. U.S. Department of the Interior. Annual subscription 3.75 foreign mailing, to Superintendent of Documents, U.S. Government Printing Office, Washington D.C. 20402.

W. B. H.

doi:10.1017/S001675680003836X

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Journal of Research of the U.S. Geological Survey. September-October 1973. Volume 1, Number 5, pp. 501–625. U.S. Department of the Interior. Annual subscription $15.50 plus $3.75 foreign mailing, to Superintendent of Documents, U.S. Government Printing Office, Washington D.C. 20402.

Volume 111, Issue 2
W. B. H.
DOI: https://doi.org/10.1017/S001675680003836X

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Journal of Research of the U.S. Geological Survey. September-October 1973. Volume 1, Number 5, pp. 501–625. U.S. Department of the Interior. Annual subscription $15.50 plus $3.75 foreign mailing, to Superintendent of Documents, U.S. Government Printing Office, Washington D.C. 20402.

Volume 111, Issue 2
W. B. H.
DOI: https://doi.org/10.1017/S001675680003836X

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Journal of Research of the U.S. Geological Survey. September-October 1973. Volume 1, Number 5, pp. 501–625. U.S. Department of the Interior. Annual subscription $15.50 plus $3.75 foreign mailing, to Superintendent of Documents, U.S. Government Printing Office, Washington D.C. 20402.

Volume 111, Issue 2
W. B. H.
DOI: https://doi.org/10.1017/S001675680003836X

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Journal of Research of the U.S. Geological Survey. September-October 1973. Volume 1, Number 5, pp. 501–625. U.S. Department of the Interior. Annual subscription $15.50 plus $3.75 foreign mailing, to Superintendent of Documents, U.S. Government Printing Office, Washington D.C. 20402.

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Journal of Research of the U.S. Geological Survey. September-October 1973. Volume 1, Number 5, pp. 501–625. U.S. Department of the Interior. Annual subscription $15.50 plus $3.75 foreign mailing, to Superintendent of Documents, U.S. Government Printing Office, Washington D.C. 20402.

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