Popular Science Monthly at the Front 



Have you a brother, son or friend going to 

 the front or to training camp? Make him 

 happy by sending him a good magazine 



Popular Science Monthly will 

 give him all the new ideas in me- 

 chanics and science. He will learn 

 all the new war developments in 

 airplanes, submarines, destroyers, 

 machine guns and tanks. What 

 magazine will be more eagerly 

 read by the boy at the front ? 



How to Send 

 Popular Science Monthly 



Uncle Sam makes no extra 

 charge for delivering magazines to 

 our soldiers and sailors at thefront. 



You can send Popular Science 

 Monthly at the regular rates: — 



For one year 31.50 



For six months 75 



For three months.. .40 



Send us the name and complete 

 designation of his division, regi- 

 ment, company and organization 

 —like this: 



Arthur J. Nichols, 



Company X, Infantry, 



American Expeditionary Forces. 



Popular Science Monthly, 

 239 Fourth Avenue, New York, N. Y. 



