Reference to Current Radio Literature

This is a monthly list of references prepared by the Bureau of Standards and is intended to cover the more important papers of interest to the professional radio engineer which have recently appeared in periodicals, books, etc. The number at the left of each reference classifies the reference by subject, in accordance with the scheme presented in "A Decimal Classification of Radio Subjects - An Extension of the Dewey System," US Bureau of Standards Circular No. 138, a copy of which may be obtained from the Superintendent of Documents, Government Printing Office, Washington, DC, USA. The various articles listed here are not obtainable from the Government. The various periodicals can be secured from their publishers and can be consulted at large public libraries. Note: Beginning with this issue the classification numbers are on the revised system published in the August issue. These numbers differ slightly in some cases from those used previously.