SCIENCE.-ADVERTISEMENTS. iii 



Important Scientific Books Recently Published 



ALLBUTT, T. Clifford, Universily of Cambridge. 



System of JMedicine and Gynaecology. Complete in nine volumes. 



New and. cheaper edition, |25.00, net, per set. 



BOTTOIME, S. R. 



Radium, and All About it. 96 p. 12mo, il., paper 35 cts., net. 



BOYIVTOIV, William Pingry, Univer-nty of Oregon. 



Applications of tlie Kinetic Tbeory of Gases, Tapors, Pure 

 Liquids, and the Theory of Solutions. 10+288 pp. 8vo, cl., !til.60rae«. 



DEXTER, Edwin Grant, University of Illinois. 



Weather influences. An Empirical Study of the Mental and Physiological 

 Effects of Definite Meteorological Conditions. With Introduction by Cleveland Abbe, 

 LL.D. 1+286 pp. 8vo, cl., $2.00 net 



GIBBOiVS, £dward E., University of Maryland, Baltimore. 



The Eye : its Refraction and Diseases. The Refraction and Func- 

 tional Testing of the Eye, Complete in Itself, in Twenty-eight Chapters with Numerous 

 Explanatory Cuts and Diagrams. 



9 + 472 pp. 4to, il., cl., $5.00 net, half morocco, $6.60 net. 



HASTINGS, William W. 



A Manual for Physical Measurements. For use in Normal Schools, 

 Public and Preparatory Schools, Boys' Clubs, Girls' Clubs, and Young Men's Chris- 

 tian Associations, with Anthropometric Tables for Each Height for Each Age and Sex 

 from Five to Twenty Years and Vitality Coefficients. 



Edition for Boys and Girls. 18+122 pp. Large 4to, il., cl., $2.00 np/. 



Edition for Boys. 15+95 pp. Large 4to, il., cl., $1.50 net. 



METCALF, JHaynard Woman s College of Baltimore. 



An Outline of the Theory of Organic Evolution. With a Descrip- 

 tion of Some of the Phenomena which It Explains. 17+204 pp. 8vo, il.,cl., $2.b0 net. 



NICHOLS, Edward L., and William S. FRAIVRCllV, Cornell University. 



The Elements of Physic. A College Text-Book. In Three Volumes. Vol- 

 ume I. — Mechanics and Heat. Third edition, rewritten with additions. 



10+290 pp. 8vo, cl., $1.90 wp/. 



RIGHI, Augusto, University of Bologna. Authorized Translation by AuonsTus Trowbridge, 

 University of Wisconsin. Modern Theory of Physical Phenomena. 



Radio-Activity, Ions, Electrons. 13+165 pp. 12mo, cl., $1.10 net. 



RUTHERFORD, E., McGill University, Montreal. 



Radio-ActiTity. 8+399 pp. 8vo, il., cl., $3.50 ne<. 



SHEARER, John S., Cornell University. 



Notes and Questions in Physics. New edition. 



7+284 pp. 8vo, il., cl., $1.60 net. 



SWENSON, Bernard Victor, and FRANRENFIELD, Budd. 



Testing of Electro-Magnetic Machinery and other Apparatus. 



Vol. I.— Direct Current. 23 + 420 pp. 8vo, il., cl, $3.00 net. 



WE¥SSE, Arthur Wisswald, Massachusetts Institute of Technology. 



A Synoptic Text-book of Zoology. For Colleges and Schools. 



25+525 pp. 8vo, cl., il., $4.00 net. 



WH1TTAKEB,E. T., 7Vm% CoZ/p^e, Cambridge. 



A Treatise on the Analytical Dynamics of Particles and Rig- 

 id Bodies. With an Introduction to the Problem of Three Bodies. 



13+414 pp. Imperial 8vo, cl., $4.00 np<. 



WILLIS, J. C, Royal Botanic Gardens, Ceylon. 



A Manual and Dictionary of the Flowering Plants and Ferns. 



Second edition, revised and rearranged, in one volume. 



Cambridge Biological Series. 21+67 pp. 12mo, il., cl., $2.75 net. 



Postage on net books ordered of the publishers is uniformly an extra charge. 



By The Macmillan Company, 66 Fifth Ave., New York 



