IX 



FOR NATURE STUDY 



GRAFLEX 



CAMERAS 

 KODAKS 



LENSES 



BOUGHT SOLD 



EXCHANGED 



Our Bargain List is a Money Saver. Send Stamp. 



WE CONSIDER A SALE IS MADE ONLY WHEN THE 

 CUSTOMER IS SATISF!ED 



WILLOUGHBY & A SQUARE DEAL 



814 Broadway -:- -:- -:- NEW YORK 



(Aquarium Specialty Co* 



Makers of All Kinds of Aquaria 

 and Terraria 



1827-1831 WASHINGTON AVE. 

 NEW YORK CITY 



The Mosher Books 



Nature lovers should feel a special in- 

 terest in this little collection, entitled 



THE NATURE THOUGHT SERIES 



comprising the following Vest Pocket vol- 

 umes: 



I. RICHARD JEFFER1ES 

 II. WALT WHITMAN 

 III. HENRY D. THOREAU 

 IV. FIONA MACLEOD 



Blue paper wrapper per volume, $ .25 



Limp cloth per volume, .50 



Flexible leather, gilt top per volume, .75 



Japan vellum edition per volume, 1.00 



Special Sets in Slide Cases. 



As above, four volumes $1.00, 2.00, 3.00, 4.00 



Sent postpaid on receipt of net price 



Thomas B. Mosher 



Portland, Maine 



From Photo by L. F. Brehmer 



NEST OF WILSON'S THRUSH 



This illustration shows the ad- 

 vantage of the single combination 

 of the 



PROTAR SERIES Vila 

 Bausch & Lomb=Zeiss 



which is a convertible lens and 

 hence valuable for out-door 

 photography, and yet can also 

 be advantageously used indoors. 

 The Protar is a doublet of 

 moderate focal length composed 

 of two long focus single lenses. 

 The correction of these lenses 

 is so excellent that the single 

 lenses, as well as the doublet, 

 give most satisfactory results. 

 Thus one has really three 

 lenses in one. 



Descriptive circular 16 D 

 on request. 



Our name backed by over half a century 

 of experience, is on all our 



products— lenses, microscopes, 

 field glasses, projection appa- 

 ratus, engineering' and other 

 ' s ^e^0y scientific instruments. 



Bausch & Iprnb Optical (p. 



HLW YORK WASHINGTON CHICAGO SAN FRANCISCO 



london iioCH ESTER.. N.Y. raANKro " 



