XII 



THE GUIDE TO NATURE— ADVERTISEMENTS 



The eighteenth volume of 



Bird-Lore 



begins February 1, 1916. 



Volume I contained 206 pages and 

 no colored plates ; Volume XVII 

 contained 560 pages and eleven 

 colored plates. 



The magazine has grown, but the 

 price remains the same. 



Annual subscription $1.00 



D. APPIETON & CO. 



29 West 32d SI. New York City 



LANTERN SLIDES 



and 



PHOTOGRAPHS 



of 



NATURE SUBJECTS 



ABOUT 3000 NEGATIVES 



of 



Birds, Nests, Mammals, Reptiles, Insects, 



Flowers, Etc. 

 Lists and Prices of Slides and Prints, 

 Plain or in Colors, Sent upon Application. 



L. W. BROWNELL 



210 Market St. Paterson, N. J. 



Make Your 

 Nature Pictures 

 Witlia 



Bauseli & Lomb 

 Lens 



A lens for every need : 



Wild Game photography, Birds 

 Flowers, Insects, Photomicrog- 

 raphy. 



PROTAR Vila. FrG.s-Fry.y, Con- 

 vertible, the most universal lens 

 made. Gives large images at long 

 range. 



TESSAR Ic. F:4.5. The lens for 

 speed — is three times faster than 

 the ordinary lens. A compact 

 equipment for reflecting cameras. 



TESSAR IIB. F :6.3. The stand- 

 ard high grade equipment for com- 

 pact hand cameras — has 61% to 

 100% more speed than the ordin- 

 ary lens. 



Our catalog tells you the lens 

 to select for your work. Write 

 for it. 



Bausch jyipmb Optical (5: 



324 ST. PAUL STREET* ROCHESTER. N,Y; 



