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COMPANY'S New Scientific Books. 



THE TEACHING BOTANIST. 



A Manual of Information upon Botanical Instruction, together with 

 Outlines and DirectioJjs for a Comprehensive Elementary Course. 



By William F. Ganong, Ph.D., Smith College. Cloth, i2mo, $l.io net. Just ready. 



This work aims to be a synoptical mono{craph of the teacliing of Botany as a science in elementaiy courses. 

 In a series of essays it discusses the place of Botany in education, botanical methods, laboratories, books, etc. 

 These are followed by outlines of an economical logical course in the modern spirit, in which the best selection 

 of topics, materials, experiments, etc., is discussed and practical directions given for utilizing them. Though 

 addressed to teachers in high schools and colleges, it will be found equally helpful to teachers of other grades. 



Handbook of Optics. Our Native Birds. 



For Students of Ophthalmology. "°^^ ^^' Pxotkct thkm and Ho^Y to Attract 



THEM to our Homes. 

 By William N. Suter, M. D., National Univer- By D. Lan(;e, author of " A Manual of 



sity, Washington, D. C. Cloth, $i.oo net. Nature Study." In Press. 



THE LIQUEFACTION OF QASE5. 



Just ready. Its Rise and Development. Cloth, i2mo, $1.50. 



By WiLLETT Lepley H.ardin, Harrison Senior Fellow in Chemistry, University of Pennsylvania. 



" The object of this little volume is to present a complete history, easy of comprehension, of the develop- 

 ment of the methods employed in the liquefaction of gases (among others, air and hydrogen). While the 

 book has been written in a popular-science style, an effort is made to make it of value to those who are 

 especially interested, by giving references to the original literature, though inaccessible to the majority of readers." 



Tbe Soluble Ferments and Fermentation. Manual of Bacteriology. 



By J. Reynolds Green, Sc. D., F. R. S., Trinity By Robert Muir, M. D., F. R. C. P. Ed., Professor 

 College, Cambridge, Professor of Botany to the of Pathology, University of Glasgow ; and James 



Pharmaceutical Society of Great Britain, etc. Ritchie, M. D., Lecturer on Pathology, Univer- 



Ca,nbrid<re Natural Science Manuals. f-^ f ^^!°^\ ^''Z"^ edition. With one hun- 



dred and twenty-si.x Illustrations. 



Cloth, 8vo, $3.00 net. Just ready. 



Cloth, Cr. 8vo, $3.25 net. 



NEW BOOKS FOR THE STUDENT OF EDUCATION, THEORY OR PK.4CTICE. 

 The Physical Nature of the Child and How to Study It. 



By Stuart H. Rowe, Ph.D., Supervising Principal of the Lovell District, New Haven, Conn.; formerly 

 Professor of Pedagogy and Director of Practice in the State Normal School at Mankato, Minn. A masterly 

 study of the child's physical basis for action. Cloth, 8vo, $1.00. 



Educational Aims and Social Phases of Education 



Educational Values. in the School and the Home. 



By Paul H. Hanus, Assistant Professor of the His- By Samuel T. Dutton, Superintendent of Schools, 



tory and Art of Teaching, Harvard University. Brookline, Mass. Cloth, i2mo, gilt top, $1.25. 



Cloth, i2mo, $1.00. , ^ r ■ r , 



A series of Essavs on Contemporary Educational 0"^ of the freshest and most suggestive presenta- 



Problems for laymen as well as for professional stu- tio"s «f this side of educatun which has yet been made 



dents and teachers. '" this country'. "— The Outlook. 



Methods of Knowledge : An Essay in Epistemology. 



By Walter Smith, of Lake Forest L^niversity. Just ready. Cloth, i2mo, $1.25 net. 



.\ definition of knowledge and study of the methods by which men have thought it possible to attain it. 



Social Laws. Tropical Colonization. 



An Outline of Sociology. ^n Introduction to the Study of the Subject. 



By G Tarde Translated from the French by g Alleyne Ireland, author of •• Demerariana : 

 HovvARD C. W ARREN, Pnnceton University. j. Historical, Critical, and Descriptive." 



With a Preface by James Mark Baldvvi.v. •' Cloth, 8vo, $2.00. 



Cloth, i6nio, $1.25. 



Science of Statistics. 



By Richmond Mayo-Smith, Ph. D., Professor of Political Economy and Social Science in Columbia Univer- 

 sity. Columbia University Press. " It is full of suggestiveness." — Jndefendent. 

 Part II. Statistics and Economics. Cloth, 8vo, gilt top, $3.00 net. Just ready. 

 Parti. Statistics and Sociologv. Cloth, 8vo, gilt top, $3.00 net. Previously issued. 



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