CLASSIFIED ADVERTISEMENTS 



Combines Dignity, Directness, and a 

 Minimum of Expense 



For Terms, Address the Advertising Manager 

 National Geographic Magazine, Washington,D.C 



ENGINEERING EXPERTS-MINING, MECHANICAL, 

 ELECTRICAL, CIVIL 



H. E. SMITH, Mining Engineer, Box 335, Ft. Smith, Ark. 



General and Secret Investigations made in the Lead 

 and Zinc Fields of Missouri, Oklahoma, and Arkansas 

 for non-residents. 



MARTIN FISHBACK, Mining Engineer, 

 El Paso, Texas, U. S. A. 



P. O. Box 701. Phones, 140, 788 



Cable: " Fishback." 



Codes : Western Union, Moreing & Neal. 



Reliable examinations and reports. Plans for economic 



development of prospects and mines, and supervision 



of operations. 



Special field : New Mexico, Arizona, and Mexico. 



Bank references furnished and required. 



LEE LA f ROBE BATEMAN, Consulting Engineer. 



20 years experience Farming Specialist, Irrigation,. 

 Drainage, and Reclamations. Surveys and reports 

 made on projected developments. Special Field- 

 Louisiana and Texas Gulf Coast Region. 

 Address, 55 West Eighty-second St., New York City. 



NORVAL J. WELSH, Mining Engineer. 

 Specialty — The examination, organization, and develop- 

 ment of gold, silver, copper, and lead mining properties 

 throughout the Republic of Mexico and the Southwest. 

 Terms on request. 

 San Antonio Club, The Engineers' Club, 



San Antonio, Texas. New York, N. Y. 



PERCIVAL M. CHURCHILL, Consulting Engineer, 

 6 Beacon St., Boston, Mass. Specialist in determining 

 possibilities for Irrigation, Drainage, and Water Power 

 Projects in any part of the world. Reports on pro- 

 jected developments; existing developments improved. 



PATENTS AND TRADE-MARKS 



ALEXANDER & DOWELL, Attorneys at Law, 607 7th 

 Street, Washington, D. C. (.Established 1857), make 

 Patent Causes a Specialty; Procure Patents and Trade- 

 Marks; Render Expert Opinions on Patentability of 

 Inventions; and Validity and Infringement of Patents; 

 Practice in all Federal Courts. Will send Book of In- 

 formation on request. 



Spr alt's Dog Cakes 



Are the Best and Cheapest 



Send for Free Catalogue, " Dog Culture," 

 which contains practical chapters on the feeding, 

 kenneling, and general management of dogs; 

 also chapters on cats. 



SPRATT'S PATENT 



(AM.) LTD. 



Newark, N. J. 

 San Francisco, Cal. 

 Boston, Mass. 



St. Louis, Mo. 



Cleveland, Ohio 



Montreal, Can. 



FALL days, the shortening days, 

 offer many temptations to the 

 camensts. If you have a 



Bausch & Lomb- Zeiss 

 Tessar Lens 



you need not fear diminishing light 

 power, for the large aperture of 

 this lens enables successful results 

 where other lenses spell failure. 

 fl[ Tessar 1 c is fast enough for the 

 most rapidly moving objects. 

 flSend for special circulars show- 

 ing the possibilities of Tessar 1 c 

 and 1 1 b. 



^ PRISM is a little magazine of lens informa- 

 tion. Send for copy. 



^ Our Name on a Photographic Lens, Field 

 Glass, Microscope, Laboratory Apparatus, 

 Scientific or Engineering Instrument is out 

 guarantee. 



Dausch & Lomb Optical Co. 



CARL ZEISS, JENA 

 Offices: 

 New York 



GEO. N.SAEGMULLER 



. San Francisco 

 5 / Washington 

 L o n don 

 Frankfort 



Boston 

 Chicago 



ROCHESTER, N. Y. 



Your courtesy in mentioning the Magazine when writing will be appreciated 



