Don't Take Our Word! 



TRY IT YOUR SELF FOR 10 DAYS WlTHQIirDEPOSIT 



If not satisfactory, simply return it and no questions asked. 

 The Daus Improved Tip Top Duplicator is the result of as 

 ears' experience and today is used and endorsed by thousands of 



years — ^ . . 



business houses and individuals, including prominent Railroad and 

 Steamship companies. Standard Oil Co., U.S. Steel Corporation, etc. 



Our negative rolls now have our new "Dausco" Oiled Parch- 

 ment Back, giving additional strength and efficiency. 



100 Copies from pen-written and 50 Copies from type-written 

 originals — Clear, Clean, Perfect. 

 Complete Duplicator, cap size (prints 8| x 13 in.) 

 price $7.50. Less Special Discount of 33!% net 



$5.00 



FELIX E. DAUS DUPLICATOR CO. Daus Bldg.. 1 1 1 John St., NEW YORK 



A Simplified Typewriter 



Remington Junior 



As durable as the standard Remington. Weight less than half the standard model. For the 



traveler and the home. Authors, clergymen, physicians, students, and others wanting a compact, 



small, reliable typewriter will welcome this machine as solving for them the typewriter problem. 



PRICES: With dust-procf cover, $50.00. With leather traveling case, $57.50 



Write today for catalog 



327 Broadway 



Remington Typewriter Company 



incorporated 



NEW YORK 



Principles of Stratigraphy 



By AMADEUS W. GRABAU, S.M., S.D. 



Professor of Palaeontology in Columbia University 



Large octavo, 1150 pages, with 264 illustrations in the text 

 Cloth bound ------ Price $7.50 



Send for descriptive circular and sample pages 



A. G. SEILER & CO. 



1224 Amsterdam Avenue - NEW YORK, N.Y. 



