SCIENCE. -ADV ERTISEMENTS. 



Six Great Works of Reference 



COMPLETE IN FOUR VOLUMES, THE 



ENCYCLOPEDIA BIBLICA 



Edited by The Rev. T. K. CHEYNE, D.D., and J. SUTHERLAND BLACK, LL.D., Astisted hy 

 many Contributors in Great Britain, Europe and America. 



Four volumes. Clotn, $20 net; half-morocco, $30 net. 



" Whether for learner or expert, there ia no dictionary that ofifers such an immense array of information." 



Willis Hatfield Hazard, in 77ie Churchman. 



DICTIONARY OF PHILOSOPHY AND PSYCHOLOGY 



Written by many hands and Edited by J. MARK BALDWIN, LL.D., with the co-operation of an Inter- 

 national Board of Consulting Editors. Three Vols. $15 net; Vols. I. and II., $10 net. 

 The Bibliographies by DR. RAND, the third volume of the full set, will also be sold separately at $5 net. 

 "Entirely indispensable to every student of the subject." — American Journal of Psychology. 



CYCLOPEDIA OF AMERICAN HORTICULTURE 



Edited by L. H. BAILEY, assisted by WILHELM MILLER and others. 2,000 pages, with 2,800 illus- 

 trations and 60 full-page plates. Four volumes, cloth, $20 net ; half morocco, $32 net. 

 "A landmark IE the progress of American horticulture." — American Oardening. 



A DICTIONARY OF ARCHITECTURE AND BUILDING 



By RUSSELL STURGIS, Fellow of American Inst, of Architecture, Author of " European Architec- 

 ture," etc., and Many Architects, Painters, Engineers and other Expert Writers, American and Foreign. 

 With Bibliographies, and over 1,500 illustrations. Three vols. Cloth, %\%net; half-mor., $30 nei. 



" One of the most complete and important works in the language devoted to this department of art and 

 industry." — Architects and Builders' Magazine. 



BRYAN'S DICTIONARY of PAINTERS and ENGRAVERS 



A new edition of a work which has no rival for completeness and trustworthiness. Thoroughly re- 

 vised, with over 500 new biographies and more than 3000 alterations necessitated by modern research. 



Five volumes, fully illustrated. Volumes I.-IV. now ready. Each $6.00 net. 



VOLUME I. NOW READY 



DICTIONARY OF MUSIC AND MUSICIANS 



By Sir GEORGE GROVE. Revised and greatly enlarged Edition, in Five Volumes. Each volume 

 illustrated with a photogravure and twenty-four full-page half-tone plates, besides many pictures in 

 the text. Cloth, 8vo. Volume I. now ready. $5.00 net, on orders for sets only. 



Sold hy subscription only. For full particulars as lo special cash or instalment offers address 



66 FIFTH AVENUE 

 NEW YORK. 



The macmillan Company, 



