Elements of Physics 



BY HENRY CREW 



Professor of Physics, Northwestern University 



REVISED BY 



FRANKLIN T. JONES 



Teacher of Physics, University School, Cleveland, Ohio 



Cloth i2tno xiv + 435 pages $1.10 



It is the aim of this book to furnish in teachable form material for a fundamental 

 course in Physics which shall be within the comprehension of the pupil in the sec- 

 ondary school. The authors design to show that Physics is the science of every- 

 day life and that it is a logical and orderly study. 



The problems and exercises in this text are unique. Instead of the old-fashioned, 

 nerve-racking problem based on impossible and impractical contingencies, the ex- 

 ercises in the new Crew and Jones are first of all sensible. They are designed to 

 be practical illustrations of the actual working out of the principles of Physics and 

 to be altogether within the bounds of the .mathematical information with which the 

 average high school pupil finds himself equipped. The diagrams and illustrations 

 in the text are clear and helpful. They add much to the attractiveness and to the 

 effectiveness of the subject matter. The formulae are derived in as simple a way 

 as is consistent with scientific accuracy. Long mathematical derivations, always 

 incomprehensible to the young student and therefore an unnecessary aggravation 

 to him, are avoided. The treatment of the text will be found throughout up to 

 date, interesting, and sound. 



Laboratory Problems in Physics 



BY FRANKLIN T. JONES 



Teacher of Physics, University School, Cleveland 



AND 



ROBERT R. TATNALL, PH.D. 



Instructor in Physics in Northwestern University, formerly Instructor in Physics in 

 the Academy of the Northwestern University 



Cloth I2mo ix + 8i pages $.50 



The student's Manual built to accompany the new Crew and Jones " Elements 

 of Physics " is a complete laboratory manual adapted to the use of secondary 

 schools. It has been the object of the authors to reduce to a minimum the ex- 

 penditure of teaching energy. The apparatus suggested for use in the laboratory 

 is simple, inexpensive, easily obtained, and easily duplicated. The book is 

 supremely practical. 



THE MACMILLAN COMPANY 



Publishers 64-66 Fifth Avenue New York 



