Classified Advertisements 



Combines Dignity, Di'ectness, and a 

 Minimum of Expense 



For Terms, Address Advertising Manager, The 

 National Geographic Magazine, Washington, D.C. 



ENGINEERING EXPERTS-MINING, MECHANICAL, 

 ELECTRICAL, CIVIL 



"Coal Mines and Coal Properties Examined; will also 

 take charge of the development and working of mines 

 in Washington; 1 9 years' practical experience in Wash- 

 ington and Canadian coal fields. 



F. A. HILL, Consulting Engineer, 



609 Mutual Life Building . . Seattle, Washington 



Phone, Main 432; Residence, East 741. 



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. 



IE. M. JONES, 1125 James BIdg., Chattanooga, Tenn., 



Mining Engineer— reports, plans for development, and 

 supervision of operations of coal properties. No su rveys 

 made. Experience: Penna. Anthracite Field, Penna., 

 Maryland, W. Va., and Tenn. Soft Coal Fields. 



STEPHEN E. KIEFFER, M. Am. Soc. C. E. Civil and 



Hydraulic Engineer. Expert solution of Water Supply 

 and Irrigation Problems in the Arid West and Mexico. 

 First National Bank Building, Berkeley, California. 



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 LATROBE 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. 



PATENT ATTORMEYS 



ALEXANDER & DOWELL, Attorneys at Law. Regis- 

 tered Solicitors of United States and Foreign Patents. 

 Practice in all United States Courts. A booklet of in- 

 formation will be sent on receiot of three cents in 

 stamps. 607 Seventh Street, Washington, D. C. 



TUTOR 



HOWARD C. JENNESS, A. B. (Harvard), Tutor, will pre- 

 pare boys for the leading colleges, the Naval Academy, 

 and West Point. Successful experience at Harvard. 

 Special classes for men wishing to enter The George 

 Washington Un'versity on certificate. 

 Telephone. Apt. 41, 1723 G St., Washington, D. C> 



Bausch & Lomb- Zeiss 



Convertible Protar Vila 



Solves the Problem of photographing 

 a wide variety of subjects with a single 

 lens and producing results that are satis- 

 factory from the most technical standpoint. 

 This lens is composed of two Series VII 

 Single Anastigmats, which may be used 

 either single or in combination, and when 

 dissimilar in foci they are equivalent to 

 three separate lenses. You have at once 

 the combined elements of speed, defini- 

 tion, covering power, brilliance — all those 

 most desirable qualities. 

 Send for our special circular. 



•JPRISM is a little magazine of lens information. 



Send for copy. 



•I Our name on a photographic lens, field glass, 



MICROSCOPE, LABORATORY APPARATUS, SCIENTIFIC 

 OR ENGINEERING INSTRUMENT IS OUR GUARANTEE. 



Dausch & LiOmb Optical Co. 



CARL ZEISS.JENA 

 Offices: 



GEO. N.SAEGMULLER 

 San Francisco 

 Washington 

 L o n don 

 Frankfort 



ROCHESTER, N. Y. 



Your courtesy in mentioning the Magazine when writing will be appreciated 



