OALLMEYER'S 



Naturalists 1 Camera, 



For Telephoto or Ordinary LENSES. 

 Positive Lens Works at f/4. 



DALLMEYER'S 



Lenses are used 

 by the most 



skilled Bird 

 Photographers. 



The following are 

 specially recommended: 



THE STIGMATIC SERIES II. F/6 (Convertible.) 



THE SERIES O PATENT PORTRAIT LENSES F 6. 



(A Rapid Long Focus Lens at a Moderate Price.) 



High or Moderate Power Telephoto Lenses (Original Make). 



We are Specialists in Cameras and Apparatus for Photo-Ornithologists. 



CATALOGUES AND ADVICE FREE. 



J. H. DALLMEYER, Limited, denzil rd., 



8 h. m ..m.= as, newmak ST., w. neaSDEN, LONDON, N.W . 



MOUNT RUWENZORI. 



Among the scientific results attained by recent expeditions 

 to the above mountain, none have exceeded in interest 

 and importance the collections of ornithological material. 

 Mr. W. F. H. Rosenberg is able to offer for sale a number 

 of great rarities and recently described species obtained at 

 considerable altitudes in this interesting region. 



Price Lists and Full Particulars will be furnished on application to 



Mr. ROSENBERG, 



57, Haverstoch Hill, London, N.W. 



WATKINS & DONCASTER, 



Waturalfsts, 



And Manufacturers of CABINETS and APPARATUS for Entomology, Birds' Eggs 



and Skins, and all Branches of Natural History. 



A LARGE STOCK OF INSECTS, and BIRDS' EGGS and SKINS. 



Speciality:— Objects for Nature Study, Drawing Classes, &c. 



BIRDS, MAMMALS, &c, PRESERVED and MOUNTED by FIRST-CLASS WORKMEN 

 TRUE TO NATURE. 



AH Books and Publications on Natural History supplied. 



36, STRAND, LONDON, W.C (Five Doors from Charing Cross.) 



Catalogue (10a pp.) post free. 



