Appletons* 

 Popular Science Monthly. 



Edited by WILLIAM JAY YOUMANS. 



The "Popular Science Monthly is without a 

 competitor. 



It is not a technical magazine. 



It stands alone as an educator, and is the 

 best periodical for people who think. 



</lll its articles are by writers of long prac- 

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 are written in such a manner as to be readily 

 understood. 



It deals particularly with those general 

 and practical subjects which are of the greatest 

 interest and importance to the people at large. 



It keeps its readers fully informed of all 

 that is being done in the broad field of science. 



Illustrations, from drawings or photo- 

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 the text may be thereby elucidated. 



Examination of any recent number will 

 more than confirm the foregoing. 



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