Electricity. A weekly journal, published by the Electricity Newspaper Co., New York. Devoted largely to questions of the practical application of electricity, but dealing also with the theoretical side.
Elements of Electro-magnetic Theory, by S. J. Barnett, Le-land Stanford, Junior, University. Macmillan & Co., 1904.
($3.)
Handbuch der Physik, by Dr. A. Winkelmann, Leipzig, 1904. "An indispensable storehouse of expert knowledge."—Nature, July, 1904.
Hardin.
Rise and Development of the Liquefaction of Gases, New York, 1899.
La théorie de Maxwell et les oscillations hertziennes, la Télégraphie sans flt by H. Poincaré, Paris, 1904 (price 2 fr.). Interesting studies of light, etc. An interesting brochure.—Revue Scientifique, July, 1904.
Le radium et la radioactivité, by Paul Besson, Paris, 1904 (price 2 fr. 75). A good exposition of the known properties of radium, marred, however, by an attempt to put in accord science and religion—à propos du radium! —Revue Scientifique, July, 1904.
Lehrbuch der Physik, by Von O. D. Chwolson, St. Petersburg, 1904. 2 vols. out. First vol. covers general physics and mechanics. Second vol. sound and radiant energy. "Excellent and quite comprehensive."—Science, review.
Park, Benjamin.