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vii 



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ALLBUTT, T. Clifford, University of Cambridge. 



Sjsteia or Medicine and trynaecology. Complete in nine volumes. 



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BOTTOM E, S. R. 



Radium, and All About it. 9(5 p. 12mo, il., paper 35 cts., net. 



BOY'NTOiV, William Pingry, Unwersitv of Oregon. 



ApplicatiouN of tlie Kinetic Theory of Gases, Tapors, Pure 

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DEXTER, Edwin Orant, University of Illinois. 



Weather Influences. An Empirical Study of the Mental and Physiological 

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GIBBOIVS, Edward E., University of Maryland, Baltimore. 



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

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9 -|- 472 pp. 4to, il., cl., $5.00 net, half morocco, $6.50 net 



HASTINGS, William W. 



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

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 from Five to Twenty Years and Vitality Coefficients. 



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METCAL.F, Maynard M., Woman's College of Baltimore.' 



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

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IVICHOES, Edward L., and William S. FRAi\RLIlV, Cornell University. 



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

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10-1-290 pp. 8vo, cl., $1.90 net 



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

 University of Wisconsin. Modern Theory of Physical Phenomena. 



Radio-Activity, Ions, Electrons. J13-|-165 pp. 12mo, cl., $1.10 net. 



RUTHERFORD, E., McGill University, Montreal. 



Radio- Activity. 8 -f- 399 pp. 8vo, il., cl., $3.60 nc<. 



SHEARER, John S., Cornell University. 



Notes and Questions in Physics. New edition. 



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SWENSON, Bernard Victor, and FRAIVKEIVFIELD, Budd. 



Testing of Electro-Magnetic Machinery and other Apparatus. 



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



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



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WH1TTAKER,E.T., 7Vm?Xi/ College, Cambridge. 



A Treatise on the Analytical Dynamics of Particles and Rig-^ 

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WIliLIS, J. C, Royal Botanic Gardens, Ceylon.l 



A Manual and Dictionary of the Flowering Plants and Ferns. 



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Cambridge Biological Series. 21 -(-67 pp. 12mo, il, cl., $2.75 nc/. 



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