Engineering

    Abstract

    THE publication of Dr. F. Vilbig's monumental A text-book on high-frequency phenomena two years ago provoked expressions of general and well-merited approval, for it was clear that its author had successfully attempted the difficult task of surveying, in up-to-date fashion, a field already extensive and yet expanding. In particular was his effort commended for the judicious balance of his selection of material, old and new. Two years is a long time in wireless history, so that it is not at all surprising that Dr. Vilbig has already been obliged to undertake the preparation of a second edition (1) of his book. The changes made are naturally mainly by way of additions, the chapters being expanded on the average by a fifty per cent increase of text, though naturally the expansion is relatively greater in the case of such swiftly developing subjects as the study of wave propagation and television. An entirely new chapter on modern acoustics has, however, been added at the end of the book.

    (1) Lehrbuch der Hochfrequenztechnik

    Von Dr. Fritz Vilbig. Zweite verbesserte und erweiterte Auflage. Pp. xxviii + 1019. 35.80 gold marks.

    (2) Schrifttumsverzeichnis zum Lehrbuch der Hochfrequenztechnik

    Von Dr. Fritz Vilbig. Zweite verbesserte und erweiterte Auflage. Pp. iv + 172. (Leipzig: Akademische Verlagsgesellschaft m.b.H., 1939.) 8 gold marks.

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    Engineering. Nature 145, 137 (1940). https://doi.org/10.1038/145137d0

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