442 Scientific Intelligence. 



12. Mepertorium der Miner •alogischen undKryslallographischen 

 literatur vom Anfang d. J. 1885 bis Anfang d. J. 1891, 

 nnd Generalregister der Zeitschrift filr Krystallographie nnd 

 Mbieralogie. Band xi-xx. Herausgegeben und Bearbeitet 

 von P. Groth und F. Grttnling. I. Theil (Repertorium von 

 P. Groth). 206 pp. 8vo. Leipzig, 1893. (Wilhelm Engelmann). 

 — This is a very complete literature of all the mineralogical and 

 crystallographic publications issued between 1885 and 1891. It 

 has been prepared by Professor Groth, to whose rare industry 

 and ability as editor we owe the twenty volumes of his " Zeit- 

 schrift," of which this marks the completion. The second part, 

 the index of vols, xi to xx, by Dr. Grunling, is nearly ready. 



III. Miscellaneous Scientific Intelligence. 



1. Hodgkins Fund Prizes. — The Smithsonian Institution an- 

 nounces the establishment of a series of prizes to be given from 

 the income of a fund established in October, 1891, by Thomas 

 George Hodgkins of Setauket, N. T., " for the increase and diffus- 

 ion of more exact knowledge in regard to the nature and properties 

 of atmospheric air in connection with the welfare of man." The 

 prizes include one of Si 0,000, another of $2,000, and a third of 

 Si, 000. A medal is also to be established under the name of the 

 Hodgkins Medal of the Smithsonian Institution, in connection with 

 the same subject. Full information in regard to the subjects for 

 which these prizes are to be given, special conditions, etc., may 

 be obtained from the Secretary, Professor S. P. Langley, at Wash- 

 ington. 



2. The Mechanics of the Earth's Atmosphere. — A collection 

 of translations by Cleveland Abbe. 324 pp. 8vo. Washington. 

 Smithsonian Miscellaneous Collections, 843. — Professor Abbe has 

 done a great service to meterologists, and to all interested in the 

 physics of the atmosphere, in thus preparing and editing this val- 

 uable collection of papers. They are twenty in number, and the 

 authors are as follows : Hagen, Helmholtz, Kirchhoff, Oberbeck, 

 Heitz, Bezold, Rayleigh, Margules, and Ferrel. 



3. Manual of Irrigation Engineering, by Herbert M. Wil- 

 son. 351 pp. 8 vo. New York, 1893. (John Wiley & Sons).— The 

 subject of irrigation is one in which a large part of our country has 

 a vital interest, and this method promises to do a great work in 

 reclaiming land long considered of no value. This volume is a 

 timely and comprehensive treatise on the subject, discussing the 

 subject of precipitation and evaporation, and also very fully, 

 the construction of dams at many points in the West. A large 

 number of illustrations adds to its value. 



4. lean-Servais Stas. — Subscriptions are solicited for a fund to 

 be used for the publication of the works of, and the erection of a 

 monument to, the great Belgian chemist, J. S. Stas. They will be 

 received by M. L. Errera, 1 Place Stephanie, Brussels. 



