A New Astronomy 



BY 



DAVID P. TODD, M.A., Ph.D. 



Professor of Astronomy and Director of the Observatory, Amherst College. 



Cloth, i2mo, 480 pages. Illustrated - - Price, $1.30 



This book is designed for classes pursuing the study in 

 High Schools, Academies, and Colleges. The author's 

 long experience as a director in astronomical observatories 

 and in teaching the subject has given him unusual qualifi- 

 cations and advantages for preparing an ideal text-book. 



The noteworthy feature which distinguishes this from 

 other text-books on Astronomy is the practical way in 

 which the subjects treated are enforced by laboratory 

 experiments and methods. In this the author follows the 

 principle that Astronomy is preeminently a science of 

 observation and should be so taught. 



By placing more importance on the physical than on 

 the mathematical facts of Astronomy the author has made 

 every page of the book deeply interesting to the student 

 and the general reader. The treatment of the planets and 

 other heavenly bodies and of the law of universal gravita- 

 tion is unusually full, clear, and illuminative. The mar- 

 velous discoveries of Astronomy in recent years, and the 

 latest advances in methods of teaching the science, are 

 all represented. 



The illustrations are an important feature of the book. 

 Many of them are so ingeniously devised that they explain 

 at a glance what pages of mere description could not make 

 clear. 



Copies of Todd's New Astronomy will be sen/, prepaid^ to any address 

 on receipt of the price by the Publishers : 



American Book Company 

 NEW YORK CINCINNATI CHICAGO 



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