22. The Interpretation of Nature. By C. LLOYD MORGAN, LL.D., 

 F.R.S. Crown 8vo. 



Dr. Morgan seeks to prove that a belief in purpose as the causal reality of which 

 nature is an expression is not inconsistent with a full and whole-hearted acceptance 

 of the explanations of naturalism. 



23. Mosquito Life. The Habits and Life Cycles of the Known Mos- 

 quitoes of the United States; Methods for their Control; and Keys for 

 Easy Identification of the Species in their Various Stages. An 

 account based on the investigation of the late James William Dupree, 

 Surgeon-General of Louisiana, and upon the original observations 

 by the Writer. By EVELYN GROESBEECK MITCHELL, A.B., M.S. 

 With 64 Illustrations. 8. 



This volume has been designed to meet the demand of the constantly increasing 

 number of students for a work presenting in compact form the essential facts so far 

 made known by scientific investigation in regard to the different phases of this, as is 

 now conceded, important and highly interesting subject. While aiming to keep 

 within reasonable bounds, that it may be used for work in the field and in the labora- 

 tory, no portion of the work has been slighted, or fundamental information omitted, 

 in the endeavor to carry this plan into effect. 



24. Thinking, Feeling, Doing. An Introduction to Mental Science. 

 By E. W- SCRIPTURE, Ph.D., M.D., Assistant Neurologist Columbia 

 University, formerly Director of the Psychological Laboratory at 

 Yale University. 189 Illustrations. 26. Edition, Revised and 

 Enlarged. 8. 



" The chapters on Time and Action, Reaction Time, Thinking Time, Rhythmic 

 Action, and Power and Will are most interesting. This book should be carefully 

 read by every one who desires to be familiar with the advances made in the study of 

 the mind, which advances, in the last twenty-five years, have been quite as striking 

 and epoch-making as the strides made in the more material lines of knowledge." 

 Jour. Amer. Med. Ass'n., Feb. 22, 1908. 



25. The World's Gold. By L. DE LAUNAY, Professor at the Ecole 

 Sup6rieure des Mines. Translated by Orlando Cyprian Williams. 

 With an Introduction by Charles A. Conant, author of "History of 

 Modern Banks of Issue, " etc. 8. 



M. de Launay is a professor of considerable repute not only in France, but among 

 scientists throughout the world. In this work he traces the various uses and phases 

 of gold; first its geology; secondly, its extraction; thirdly, its economic value. 



26. The Interpretation of Radium. By FREDERICK SODDY, Lecturer 

 in Physical Chemistry in the University of Glasgow. Third Edi- 

 tion, rewritten, with data brought down to 1912. 8. With 33 

 Diagrams and Illustrations. 



As the application of the present-day interpretation of Radium (that it is an 

 element undergoing spontaneous disintegration) is not confined to the physical 

 sciences, but has a wide and general bearing upon our whole outlook on Nature, Mr. 

 Soddy has presented the subject in non-technical language, so that the ideas involved 

 are within reach of the lay reader. No effort has been spared to get to the root of 

 the matter and to secure accuracy, so that the book should prove serviceable to other 

 fields of science and investigation, as well as to the general public. 



27. The Social Evil. With Special Reference to Conditions Existing 

 in the _City of New York. A Report Prepared in 1902 under the 

 Direction of the Committee of Fifteen. Second Edition, Revised, 

 with New Material Covering the Years 1902-1911. Edited by 

 EDWIN R. A. SELIGMAN, LL.D., McVickar Professor of Political 

 Economy in Columbia University. 8vo. 

 A study that is far from being of merely local interest and application. The 



problem is considered in all its aspects and, for this purpose, reference has been made 



to conditions prevailing in other communities and to the different attempts foreign 



cities have made to regulate vice. 



28. Microbes and Toxins. By ETIENNE BURNET, of the Pasteur 

 Institute, Paris. With an Introduction by Elie Metchnikoff, 

 Sub- Director of the Pasteur Institute, Paris. With about 71 

 Illustrations. 



A well-known English authority said in recommending the volume: "Incom- 

 parably the best book there is on this tremendously important subject. In fact, I am 

 assured that nothing exists which 'gives anything like so full a study of microbiology." 

 In the volume are considered the general functions of microbes, the microbes of the 

 human system, the form and structure of microbes, the physiology of microbes, the 

 pathogenic protozoa, toxins, tuberculin and mallein, immunity, applications of 

 bacteriology, vaccines and serums, chemical remedies, etc. 



