SCIENCE.— AD VERTISEMENTS. 



Macmillan & Co.'s New Books. 



Cambridge Natural History Issues. 



nOLLUSCS. By the Eev. A. H. CoOKE, M. A., FelloTV and Tutor of King's College, Cambridge. 

 BRACHIPODS (Recent). By A. E. Shipley, M. A. 

 BRACHIPODS (Fossil). By F. E. C. Reed, M. A. 



Being Vol. III. of the Camhridge Natural History. 8vo, cloth, $2.60, net. 



A Text=Book of the Principles of Physics. 



By Alpbed Daniell, LL. B., D. So., F. R. S. E., formerly Lecturer on Physics in the School of Medi- 

 cine, Edinburgh. 3rd Edition. 8vo. 782 pages. [Nearly Beady.'] 



A Treatise on Bessel Funtions, 



And their Applications to Physics. By Andrew Gray, M. A., Professor of Physics in the University of 

 North Wales, and G. B. Mathews, M. A., Fellow of St. John's College, Cambridge. 8vo, cloth, $4.50, net. 



Completion of Prof. Vines' Botany. 



A STUDENT'S BOTANY. Part II. (completing the work). By Peof. Vines. 8vo, cloth. Both 

 parts in one volume. 8vo. 483 Illustrations. 



SYSTEMATIC BOTANY. A Handbook. By Peof. E. Waemng. Edited by Prof. M. C. Potter. 

 Svo, vnth 610 Illustrations. 



STEAn POWER and HILL WORK. Principles and Modern Practice. By Geo. W. Sotcliffe, 

 Whitworth Scholar, member of the Institute of Civil Engineering. ( The Specialist's Series. 12mo, cloth, 

 $4.50, net. 



The Evolution of Industry. 



By Heney Dyer, C. E., M. A., X). So. 12mo, cloth. \_Ncarly Ready.'] 



TRANSLATION OF M. VIOLLET-LM-DUC S TREATISE ON "CONSTRUCTION.' 



RATIONAL BUILDING ; the Article "CONSTRUCTION." 



By E. E. ViOLLET-LE-Duc, from the Dictionnaire RaisonmS de 1' Architecture Francaise. Translated by 

 Geoege Mabtin Huss, Architect, Member of the Architectural League, New York. With Numerous Illus- 

 trations. Svo, cloth, $3.00. 



" After a general view of the subject, the author deals with the underlying principles of architecture, the various pro- 

 cesses of construction, the peculiarities of Greek, Roman and Gothic art, the material used in each, the development of the 

 different styles of building, civil and military construction, etc. The work is intended primarily for architects and students, 

 but the lay reader will find it easy of comprehension, and the historic portionsat least of deep interest." — Boston Transcript. 



SCIENTIFIC WEATHER OBSERVATION AND PREDICTION. 



Meteorology. Weather and Methods of Forecasting. 



Description of Meteorological Instruments, and River Flood Predictions in the United States. By THOMAS 

 Russell, U. S. Assistant Engineer. Svo, cloth, illustrated, $4.00. 



A work designed to show how trustworthy predictions of coming weather may be made, and in what 

 cases useful forecasts are possible. The method is baaed chiefly on statistics of the observed condition of the 

 air as to pressure, temperature and humidity of particular types. 



MACMILLAN & CO., 66 FIFTH AVENUE, NEW YORK. 



