t4- — Earthquakes. In the Light of the New Seismology. By Clarence 

 E. Duttox, Major U. S. A. Illustrated. 8°. Net. $2.00. (By 

 mail, $2.20.) 



The book summarizes the results of the men who have accomplished the great 

 *hi.. s in their pursuit of seismological knowledge. It is abundantly illustrated and it 

 fills a plac unique in the literature of modern science." — Chicago Tribune. 



15. — The Nature of Man. Studies in Optimistic Philosophy. By Elie 

 Metch.nikoff, Professor at the Pasteur Institute. Translation and 

 introduction by P. Chambers Mitchell, M.A., D.Sc. Oxon. Illus- 

 trated. 8°. Net, $2.00. 



" A book to be set side by side with Huxley's Essays, whose spirit it carries a step 

 further on the long road towards its goal." — Mail and Express. 



The following volumes are in preparation : 



Meteors and Comets. By Professor C. A. Young, Princeton Uni 

 versity. 



The Measurement of the Earth. By Professor C. T. Mendenhall, 

 Worcester Polytechnic Institute, formerly Superintendent of the U. S. 

 Coast and Geodetic Survey. 



The History of Science. C. S. Pierce. 



Recent Theories of Evolution. By J. Mark Baldwin, Princeton 

 University. 



The Reproduction of Living Beings. By Professor Marcus Hartog, 

 Queen's College, Cork. 



Man and the Higher Apes. By D*. V. Keith, F.R.C.S. 



Heredity. By J. Arthur Thompson, School of Medicine, Edinburgh. 



Life Areas of North America : A Study in the Distribution of 

 Animals and Plants. By Dr. C. Hart Merriam, Chief of the 

 I iological Survey, U. S. Department of Agriculture. 



Age, Growth, Sex, and Death. By Professor Charles S. Minot, 

 Harvard Medical School. 



History of Botany. By Professor A. H. Green. 



Planetary Motion. By G. W. Hill. 



