“E. E.” offers index and binding service

The annual index covering the contents of ELECTRICAL ENGINEERING for the twelve issues of the calendar year 1931 will be available for distribution after January 15, 1932. It is to be published in a form convenient for those wishing to file it for reference or to include it in bound volumes of the 1931 monthly issues. A notice of this index appeared in the advertising section of ELECTRICAL ENGINEERING for December 1931 and is repeated in this issue. An order form may be found on p. 992 of the December issue. The index will be printed in a quantity governed by the number of requests received prior to January 15, 1932.