A Big Christmas Present 

 For Only $1.50 



This year give j^our friends a real present, 

 one they will enjoy through the whole year. 

 Give the Popular Science Monthly for 191 7. 

 A year's subscription, twelve months, costs 

 only $1.50. The twelve numbers will contain 



over 4,000 pictures 

 over 2,000 articles 

 over 1,800 pages 



and will tell the whole wonderful story of the 

 year's progress in invention, mechanics, and 

 science. 



A Christmas Gift Card will be sent to each friend 

 announcing your gift. The first copy of the maga- 

 zine and the Gift Card will be received just before 

 Christmas. 



Send your list of gift subscribers as soon as possible, 

 and surely before December 15th. 



Subscription $1.50. Canadian postage 30c extra. Foreign $1.00 extra. 



Popular Science Monthly Gift Club 



239 Fourth Ave., New York, N. Y. 



801 



