SCIENCE.— AD VERTISEMENT8. 



Ready February 1st 



A History of Physics 



In its Elementary Branches, including the Evolution of 

 Physical Laboratories 



By FLORIAN CAJORI, Ph.D. 



Professor of Physics in Colorado College. 

 Cloth, Crown 8vo, $1.60 net. 



This brief popular history gives in broad outline the development of the science of physics from an- 

 tiquity to the present time. It contains also a more complete statement than is found elsewhere of the evo- 

 lution of physical laboratories in Europe and America. The book, while of interest to the general reader, is 

 primarily intended for students and teachers of physics. The conviction is growing that, by a judicious in- 

 troduction of historical matter, a science can be made more attractive. Moreover, the general view of the de- 

 velopment of the human intellect which the history of a science affords is in itself stimulating and liberal- 

 izing. 



In the announcement of Oshoald's Klassiker der Exalden Wissenschaffeti v/e read as follows. "While 

 by the present methods of teaching, a knowledge of science in its present state of advancement is imparted 

 very successfully, eminent and farsighted men have repeatedly been obliged to point out a defect which too 

 often attaches to the present scientific education of our youth. It is the absence of the historical sense and the 

 want of knowledge of the great resemrehes upon which the edifice of science rests." 



It is hoped that the present volume may assist in remedying the defect so clearly pointed out by Pro- 

 fessor Ostwald. 



BY THE SAHE AUTHOR 



History of Mathematics 



Cloth, 8vo, $3.50. 



" What we have a right to expect in such a hand- 

 book is an agreeable narrative of the most material 

 events in the history of mathematics, and this Pro- 

 fessor Cajori inoontestably supplies. The book was 

 much wanted." — The Nation. 



" A scholarship both wide and deep is manifest in 

 this History of Mathematics which the author has in- 

 fused with his own ardor in this department of 

 science." — Journal of Education. 



" To the student with a love for mathematical 

 science this book will be as entertaining as a ro- 

 mance." — The Transcript, Boston. 



A History of 

 Elementary Mathematics 



Cloth, 12mo, $1.50. 



"A most instructive, and at the same time a very 

 readable piece of work, full of curious facts." 



— The Bookman. 



" By no means an abridged edition of The History 

 of Blathematics. It is an entirely new book, giving a 

 somewhat detailed account of the rise and progress 

 of Arithmetic, Algebra and Geometry. The book 

 should be read by all teachers of these subjects, and 

 by mathematical students generally." 



— American Mathematical Monthly. 



" The product of wide and scholarly research. . . 

 For its historical facts and its suggestiveness, this 

 work should be read carefully by all students and 

 teachers of mathematics." — The Dial, Chicago. 



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