GREENOUGH'S 



STEREOSCOPIC 



BINOCULAR 



MICROSCOPE. 



Two Microscope tubes are 

 so arranged as to bring the 

 same object into focus in tbe 

 axis of each tube, the tubes 

 being set at an angle to each 

 other for this purpose. The 

 stand is provided with rack 

 and pinion adjustment. The 

 image is erected by Porro 

 prisms. 



Price, with one pair of objectives 

 and eyepieces . . £10 



Additional objectives per pair 



£2 



Additional eyepieces per pair 



£0 10 



E. Leitz, 



OXFORD HOUSE, 

 9, OXFORD ST., LONDON, W. 



'I'elephone : Gerrard 107*. 



Agents in all University Centres. 



A. LIONEL CLARKE, 



NATURAL-HISTORY AGENT, STROUD ROAO, GLOUCESTER, 



{Opposite Post Office.) 



SUPPLIES Collectors with every kind of apparatus for the various branches of 

 Natural History: Cabinets, Store Boxes, Butterfly Nets, &o. 

 BIRDS' EGGS, SKINS, LEPIDOPTERA and COLEOPTERA, Ac, kept 

 in stock in large quantities. 



The largest stock of Eggs in England to select from, including many very rare 

 species. List of clutches sent if desired. Large buyers liberally dealt with. 



lieviaed List of British Lepidoptera, noiv ready, post free. 



NEW AND SECOND-HAND BOOKS. 



Taxiuekm Y. Birds skinned and prepared for Cabinets or mounted by skilled nssistant s. 

 Full general Catalogue and Special List of Eggs and Skins, rost free. 



N.B. — No Agents, and only one address as above. 



