Supplemental estimates of appropriation and contract authorizations for the Department of the Interior, Bonneville Power Administration. Communication from the President of the United States transmitting supplemental estimates of appropriation and contract authorizations for the fiscal year 1949 in the amount of $248,000 cash and $335,000 contract authorization for the Department of the Interior, Bonneville Power Administration. April 7, 1948. -- Referred to the Committee on Appropriations and ordered to be printed. [electronic resource]