CONSERVATION'S ADVERTISERS 



The glass most suit'' 

 able for the sportsman 

 or the traveler is the 



GOERZ "PAGOR 

 BINOCULAR 



It is the smallest and most 

 compact prism glass on the 

 market. It yields clear, 

 sharply defined, beautifully 

 lighted images. It measures 

 up fully to the well-known 

 "Olnprz" standard of excel- 

 lence in every detail of 

 construction. 



Made in three magnifications 



95 



6x 



8x 



lOx 



Get our catalogue at the dealers or direct 



01- ?p. ^mx% Am^rtratt 

 (ipttral OInmpang 



New York: 52 Union Square, E. 



Chicago, 111. 

 l514 Heyworth BIdg. 



San Francisco, Cal. 

 703 Claus Spreckels Bldg. 



The Pompeian Co 



Imporlers of highest class Refined 

 Pompeian Olive Oil, and manufac- 

 turers of Olive Oil Products. Pro- 

 prietors of 



OLIVKRIM 



A pure Olive Oil hair invigorator. 

 Not to be confused with tonics, quin- 

 ine or other "cures." It contains all 

 the health-giving, nourishing prop- 

 erties of pure Olive Oil— a hair food, 

 not a combination of alcohol and 

 drugs. 



OLIVE OILS 



Our Pompeian Extra No. i Lucca Oil 

 is the finest product of Italian Olive 

 Orchards. Analyzed and endorsed 

 by Prof. H. E. Kalusowski, Dean of 

 the George Washington College of 

 Pharmacy, Washington, D. C. 



THE POMPEIAN CO. 



702 Fifth Street Washington, D. C. 





PLANE SURVEYING 



A Text-book and 

 Pocket Manual 



By John Clayton Tracy, C. E. 



Ass't Professor of Structural Engineering 

 Sheffield Scientific School of Yale University 



1 6 mo, xxvii + 792 pages, illustrated with 

 line cuts. Morocco, $3.00 



Used in the Yale Forestry School and just 

 adopted in Pennsylvania Department of 

 Forestry 



Descriptive Circular on Application 



JOHN WILEY 6 SONS 



43 and 45 E. 19th Street 

 New York City 



2b 



In writing to advertisers kindly mention Conservation 



