The Principles of Electric-wave Telegraphy and Telephony

1919 Nature  
NATURE 4 2"' ,) misslewsky read Ostromisslensky. " Roberite " (p. 108) is usually written "roburite "-at least on this side of the Atlantic; and "Anallen " in the list of references should be " Annalen." These are blemishes which should not occur in a book written by an instructor in general chemistry in so important a school as the Carnegie Institute of Technology. THE PRINCIPLES OF RADIO-CO iHMUNICATION. The Principles of Electric-wave Telegraphy and Telephony. By Prof. J. A. Fleming. Fourth
more » ... dition, revised. Pp. xvi + 707. (London : Longmans, Green, and Co., rgrg.) Price 42s. net. 1 tific radio-telegraphist it is a necessity. A. RussELL.
doi:10.1038/103423a0 fatcat:gdk7sqhckjhlrmnylnbaz5elum