CONSERVATION'S ADVERTISERS 



OPTICAL GOODS 



For Short 



Days and 



Weak 



Light 



WHETHER out of doors, indoors, 

 at home or in the studio, you muSt 

 have a lens that works fast. At the best 

 your photographic working day is short 

 at this time of the year. How short, is 

 a matter which is i ntimately connected 

 with the speed of the lens which you are 

 using. Many lenses are fast in theory 

 only ; it is i mpossible to make use of their 

 speed because at full opening they will 

 not cover enough of the plate, for which 

 they are intended, to be of use. It is 

 easy to make a lens fast at the expense 

 of other qualities, such as covering power, 

 definition, depth of focus. But the 



Goerz "Celor'^ Lens 



is not made that way. At full opening 

 it covers a larger field with sharper 

 definition, and negatives made with it 

 have a greater depth of focus than with 

 any other lens of equal speed. 



The Celor is invaluable for groups, 

 portraits and all outdoor use requiring 

 extreme speed. 



The Celor because of its perfedt 

 chromatic corredions, is admirably adapt- 

 ed to the new color photography. 



A Suggestion for Christmas 



For your photographic friend, we 

 would suggest one of our high-grade 

 lenses fitted with our accurately working 

 XL Shutter; a most pra<5tical and 

 pleasing gift. Or for general gift giving 

 one of our field glasses. 



Write for free catalogue which lists our high-grade 

 Photographic Lenses, XL Shutter, Field 

 Glasses, Anschiitz Camera, Gunsight, 

 Telephoto Attachments, etc. 



We prefer to supply you through your dealer, 

 but where we have none we do so direct. 



C. p. Goerz Amerjcan Optical Co. 



Dept. 3 

 52 UNION SQUARE, E., NEW YORK CITY 



We carry a large assortment of 

 seeds of EVERGREEN and 

 DECIDUOUS TREES and 

 SHRUBS, both native and im- 

 ported, and shall be glad to quote 

 on any that are still unsold. 



J. M. THORBURN 6 CO. 



33 BARCLAY STREET 



ThrougK to 38 Park Place 



Established 1802 



NEW YOR.K 



The World's Greatest Poultry Paper 



THE FEATHER 



Only so cents a year 

 THE FEATHER'S LIBRARY 



No. 1. DISEASES OF POULTRY. By D. B. Salmon, 

 D.V.M. Fully Illustrated. Paper, 50 cents; cloth, $1. 



No. 2. THE FEATHER'S TTP-TO-DATE POULTRY 

 HOUSE. Paper, 2.') cents. 



No. 3. THE AMERICAN FANCIER'S POULTRY BOOK, 

 Profusely Illustrated. By Geo. B. Howard. Paper, 50 

 cents; cloth, $1. 



No. 4. PLYMOUTH ROCKS. Colored Ulustratlons. By 

 T. F. McGrew. Paper, 50 cents; cloth, $1. 



No. 5. WYANDOTTES. Colored Illustrations. By T. 

 F. McGrew. Paper, 50 cents; cloth, $1. 



No. 6. POCKET MONEY POULTRY. By Myra V. 

 Norvs. Paper. 50 cents: cloth, $1. 



No. 7. THE EGG QUESTION SOLVED. By T. F. 

 McGrew. Paper. 25 cents; cloth. ,10 cents. 



No. 8. HOW TO GROW CHICKS. By T. P. McGrew. 

 Paper, 25 cents; cloth. 50 cents. 



No. 9. THE HOMING PIGEON. Illustrated. Paper, 

 25 cents; cloth. .50 cents. 



No. 10. THE FEATHER'S PRACTICAL PIGEON 

 BOOK. Bv J. C. lA3r\e. Paper, 50 cents; cloth, $1. 



No. 11." MONEY IN SaUABS. Profusely Illustrated. 

 By J. 0. Ix>ng and G. H. Brlnton. Paper, 50 cents; 

 cleth, $1. 



No. 12. THE FEATHER'S PRACTICAL SQUAB BOOK. 

 By W. E. Rice. Paper, 50 cents; cloth, $1. 



No. 13. PERFECTED POULTRY OF AMERICA. By 

 T. F. McGrew and Geo. E. Howard. Illustrated by Louis 

 P. Graham. Cloth. $2.50. 



SPECIAL OFFER 



Onr latest book. THE PERFECTED POULTRY OF 

 AMERICA, and THE FEATHER for one year for the price 

 ot the book alone. $2.50. 



THE HOWARD PUBLISHING 00. 

 714 Twelfth Street Northwest Washington, D. C, 



2b 



In writing to advertisers kindly mention Conservation 



