﻿City of Lonixon Entomological and Natural History Socikty, London 

 Institution, Finsbury Circus, E.G. — The first and third Tuesdays in tlie month, at 

 7.30 p.m., except in July and August. Entomologists are cordially invited to 

 attend with exhibits. — V. Eric Shaw, Hon. Sec. 



To Correspondents. — All notes, papers, books for review, &c., and notices. ot 

 exchange should be sent to the Editor — 



RICHARD SOUTH, 96, DRAKEFIELD ROAD, UPPER TOOTING. S.W. 



pOR SALE.— Fine Collection Exotic Butterflies. 



* Sps. mostly perfect condition, in seven Cabinets, 



176 drawers (96 interchangeable) ; with Entomological 

 Works — Cramer Hewetson, Moore, Felder, &c. 



F. Z. S., c/o WEST, NEWMAN & Co., 54, Hatton Garden, W.C. 



STEREOSCOPIC BINOCULAR MICROSCOPE 



Two Microscope tubes are so arranged as to bring the same object into focus in the 

 axis of each tube, the tubes being set at an angle to each other for this purpose. The 

 stand is provided witli rack and pinion adjustment. The image is erected by Porro prisms. 



Price, with one pair of objectiYes and eyepieces .. £10 



Additional objectives per pair .. £2 



Additional eyepieces per pair . . £0 10 



E. LEITZ, 18 BLOOMSBURY SQUARE, LONDON, W.C. 



Microscopes for all requirements, Dissecting Stands, Aplanatic Pocket Lenses, Micro- 

 tomes and Microtome Knives, Photo-micrographic Apparatus, Universal Projection 

 Apparatus, Drawing Apparatus, Prism Field and Opera Glasses, &c. 



