LEITZ PRISM BINOCULARS. 



New and Improved Models* 



Extract from "Nature" 

 (the leading scientific 

 journal}:—" We can, witii- 

 out hesitation, speak very 

 highly of the optical per- 

 formance of this instru- 

 ment. The definition is 

 remarkably crisp, and the 

 image very achromatic 

 and quite sharp up to the 

 edge of the field of view." 



Extract from " The Lan- 

 cet" (the leading medical 

 journal) : — "Admirably 

 adapted for field service 

 and other purposes, so 

 sharp and well-defined 

 are the images right 

 up to the range of the 

 lenses. The glasses are 

 conveniently light to 

 carry." 



eZ3 



Increased light gathering power. Larger field of view, with sharp defini- 

 tion to the edge. Enhanced stereoscopic effect. Perfect mounting of the 

 prisms by patented device. Absolute protection of optical parts against 

 dust and moisture. Extreme lightness combined with strength and 

 rigidity. Supplied with or without central focussing screw. 



Jjl These Binoculars are made with the same care and precision as the 

 Leitz Microscopes, so much appreciated by workers with the latter. 



Descriptive Price List Post Free. 



E! r- I "TT "7 Oxford House, 



, L. Q I I ^ , 9, Oxford Street, London, W. 



Or through first-class Opticians. 



Crown 4to, Cloth, gilt, extra., Pp, 144, Price tOs, 



A 



Bird Collector s Medley 



BY 



E. C. ARNOLD, M.A. 



^ With Twelve full-page Coloured Illustrations and Eight Un- 

 coloured, from the Author's Drawings. Illustrated in the Text 

 by Twenty Process Blocks. 

 •I A Book for Amateur Collectors and Shore-Shooters. 



THE AVICULTURAL MAGAZINE 



Edited by J. LEWIS BONHOTE, M.A. 



To promote the study of Birds, both British and Foreign, in 



freedom and in captivity. Frequent Illustrations. 



ANNUAL SUBSCRIPTION, 15s. POST FREE. 



London: WEST, NEWMAN dc CO., 54, Hatton Garden, E.G. 



