170 Scientific Intelligence. 



SCIENTIFIC INTELLIGENCE. 



I. Miscellaneous Scientific Intelligence. 



1. Natural Science: A monthly review of Scientific Progress. 

 Eacli no. 80 pp. 8vo. (Macrnillan & Co., London and New 

 York ; 14s., post free.) — The first number of this new monthly 

 appeared on the 1st of March. The four numbers thus far issued 

 show that it is to be a Journal of great value to all interested in 

 the progress of natural science. Its contributors are men of 

 high scientific standing. The June number contains papers by 

 P. L. Sclater on the Antelopes of Somali-Land, with figures; 

 R. Lydekker on Recent Researches in Fossil Birds ; A. Yaughan 

 Jennings, on the Cave Men of Mentone, giving the results of 

 recent researches and a plate; G. H. Carpenter, Facts and theories 

 in the development of Insects ; and others by Prof. Teall, Prof. 

 C. Loyd Morgan, besides various shorter notices of recent dis- 

 coveries. 



2. Catalogue of Scientific Papers (1874-1883). — Completed 

 by the Royal Society of London, vol. ix, 1016 pp. London, 1891. 

 — This large volume is the first of the three which will form the 

 third series of the Royal Society's Catalogue of Scientific Papers, 

 embracing titles of papers published or read during the decade, 

 1874-1883. The titles are arranged under the names of the 

 authors and are given with great thoroughness and accuracy; 

 this first volume contains the names from Abadie to Gissler. The 

 work, like its predecessors, is invaluable to all concerned with 

 the literature of science. 



3. Experiments with alternate currents of high potential and 

 high frequency ', by Nikola Tesla. A Lecture delivered before 

 the Institution of Electrical Engineers, London. With a por- 

 trait and biographical sketch of the author. 146 pp. 12mo. 

 New York, 1892 (The W. J. Johnston Company).— Mr. Tesla's 

 lectures delivered, in February last, before the Institution of 

 Electrical Engineers in London have been republished in book 

 form from the pages of the Electrical World. The author's 

 name is already identified with some very important advances in 

 connection with dynamos giving alternating currents. These 

 lectures give the results of his experiments with very rapidly 

 alternating currents of high potential, obtained from an induction 

 coil operated either by the extremely rapid oscillations of a dis- 

 ruptive discharge from a condenser, or, in other cases, by a spe- 

 cially constructed alternator, giving many thousand reversals 

 per second. The luminous phenomena obtained are not only 

 novel and highly interesting, but very suggestive as to a possibly 

 more efficient means of illumination than that now in use. The 

 volume is well illustrated and serves to bring the substance of 

 these remarkable lectures before a much larger audience than 

 that which had the privilege of hearing them delivered. 



