SCI 



Nhw Bebies 



Vol. XXXIX. No. 1006 



Friday, April 10, 1914 



BiNGLS Copies, 16 Crs. 

 Annual Stjbsokiftioic, t&.OO 



Principles 



of 



Physid 



Willis E. Tower Charles H. Smith Charles M. Turton 



ChicEigo Chicago Chicago 



Members of the Editorial Staff of "School Science and Mathematics" 



Fully Illustrated Price, Cloth, $1.25 Postpaid 



If The writers are expert teachers of physics rather than experts in physics, experimental and theoretical. 

 In this, the physics has not suffered while the attractiveness and effectiveness in class use has been much 

 increased. 



U Simplicity of presentation is a leading feature. The methods of attack, illustrations and examples em- 

 ployed appeal to the pupil. 



If The pupil, his experience, interests and needs have been kept in mind by the authors who have a long 

 experience in teaching the principles of physics. 



If While the numerical problems give sufficient drUl and mastery of the mathematical side of physics, 

 special attention has been given to avoid abstruse and complicated mathematical puzzles. 



If The problems emphasize physical principles and not mathematical training 



If The large number of practical exercises and problems permit testing at many points and of a choice of 



problems by teachers. 



If The text comprises over seventy sections, each containing material enough for one recitation. 



If A feature of the book is "Important Topics" which individualizes the essentials. 



If Another feature is the "Exercises" which not only illustrate, but fix in the mind of the pupil the appli- 

 cation of physics to home experiences and occurrences in daily life. 



^ The book has a distinct appeal to a distinct class, and shows a proper perspective and pedagogical atti- 

 tude on the part of the authors. 

 If It is up-to-date in all respects. 



P. BLAKISTON'S SON & CO. Publishers 



1012 Walnut Street PHILADELPHIA 



