OOMS, ESTABLISHED 1760. 



lyi K. J. C. STE .^. vvill sell at his Rooms, 38, King 



l^**- Street, Covent Garden, London, W.C., about the third 



wfck in January, over four hundred lots of duplicate 



'TIC BUTTERFLIES from the JoicEY Collection, com- 



Kismg most of the orders down to the Lycaenidae. Many 

 rp- specimens from the H. Grose-Smith Collection will be 

 uled. See January Journals for further particulars. 

 Catalogues in course of preparation. 



FIRST TIME OFFERED. 



.TURNIA PYRETORUM, South China.— Fine 



wild cocoons of this desirable species, 2s. 6d. each, 255. 

 dozen, free ; or will exchange only for good species of 

 aniassiiiKc or Satuniiche, 

 . HENRY WATSON, 70, Ashford Road, Withington, Manchester. 



GREEMHOUGH'S 



STEREOSCOPIC 



BINOCULAR 



MICROSCOPE. 



Two Microscope tubes are 

 arranged as to bring the 

 lie object into focus in the 

 axis of each tube, tlie tubes 

 buing 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. 



Telephone : Gerrard 167'1. 



Aj^eiits in all University Centres. 



