LEITZ PRISM BINOCULARS. 



New and Improved Models. 



Extract from "Nature'' 

 (the leading scientific 

 journal):--" We can, with- 

 out hesitation, speak very 

 highly of the optical per- 

 formance of this instru- 

 ment. The definition is 

 remarkably crisp, and the 

 image very achiomatic 

 and quite sharp np to the 

 edge of the field of view." 



Extract from *'The Law- 

 get" (the leadin? medical 

 journal) : — " Admirably 

 adapted for field service 

 and other purposes, so 

 si'arp and well-defined 

 are the images right 

 up to the range of the 

 lenses. The glasses are 

 conveniently light to 

 carry." 



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 the optical parts against 

 dust and moisture. Extreme lightness combined with strength and 

 rigidity. Supplied with or without central focussing screw. 



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

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



}scw Descriptive List of Prism Field and Opera Glasses Post Free. 



Microscopes and Accessories for all requirements, Micro- 

 tomes and Microtome Knives, Photomicrographic and 

 Projection Apparatus, Dissecting Stands, Aplanatic 

 Pocket Lenses, &c. 



E- LEITZ^ 18 Bloomsbury Square, London, W.C. 



{A few doors from the British Museum.) 



Pp. 468 + xxiv, with eight Illustrations. In paper cover, 4s. 

 Cloth, gilt, 5 s. Postage 6d. 



HORTUS MORTOLENSIS 



An Alphabetical 



CATALOGUE OF PLANTS 



Growing in the Garden of the late 

 SIR THOMAS HANBURY, K.C.V.O., F.L.S. 



AT 



LA MORTOLA 



Ventimiglia, Italy 

 Compiled by ALWIN BERGER 



LONDON : WEST, NEWMAN & CO., 54, HATTON GARDEN 



