LEITZ — 



NEW APPARATUS FOR 



PHOTOMICROGRAPHY 



For use in Horizontal or Vertical Positions. 

 Possessing many New and Important Features. 



LARGE EPIDIASCOPE 



A new and convenient apparatus for the Direct Projection in 

 Natural Colours of Microscopical Slides, Opaque Objects (such 

 as Book Illustrations, Photo Prints, Diagrams, Portions of 

 Plants, Skin Diseases, etc.), Lantern Slides and Spectra. 



LEITZ = EDINGER 



DRAWING APPARATUS 



For the Direct Projection of Microscopical Preparations, 

 insures greater accuracy in Drawing. 



MICROSCOPES for all requirements, MICROTOMES and 

 MICROTOME KNIVES, DISSECTING STANDS, APLANATIC 

 POCKET LENSES, PRISM FIELD and OPERA GLASSES, etc. 



Cidalogues and Booklets post free. 



18 BLOOMSBURY SQUARE, W.C, 



{A feiv doors from the British Museum.) 



THE BRITISH ROSES. 



By Major A. H. WOLLEY-DOD. 



144 pp. Price 3s. Postage 2d. 



Excluding Eu=canin£e 



Price 2s. 6d., Postage 2d. 



The Subsection Eu=caninae 



Price 2s. Postage Id. 



A List of British Roses 



76 pp., Demy 8vo. With Plate. Price; 3s. Postage 2d. 



THE GENDS FDMARIA IN BRITAIN. 



By H. W. PUGSLEY, B.A. 



London- WEST, NEWMAN d Co., 54, Hatton Garden. 



