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Classified Catalogue. NEW EDITION FOE 1880. Post Free and Gratis. 



Specimens of the highest attainable perfection in every branch of Microscopy. New and 



Eare Diatomacese. Test and Binocular Objects. MoUer's Typen Plattes. 



Microscopes, Achromatic Objectives, and all Materials and Instruments for Mounting. 



EDMUND WHEELER, 48 B, Tollington Road, HoUoway, London, N. 



JPOST :FE,EE, THIiEE ST.A.nVCI'S. 



JOHN WHELDON'S ZOOLOGICAL CATALOGUE, 



Containing over 1750 articles on Mollusca, Conchology, Ichthyology, Eeptilia, 

 Obnithology, Mammalia, Antheopology, Ethnology. Vetebinary, Angling, 

 Sporting, and General Zoology. Transactions and Journals of Scientific Societies, &c. 



london : 68, OEEAT QUEEN STEEET, LINCOLN'S INN FIELDS, W.C. 



(JVext Door to Freemasons' BaW). 



S T^ I F T & S O TV 



Are now adapting to their " Challenge " and other Microscopes, 



A NEW THIN MECHANICAL STAGE AND PATENT COARSE AND 

 FINE ADJUSTMENTS, 



Also SWINGING SUBSTAGE RADIAL ILLUMINATOR, as well as 



all the latest Improvements and Additions to the Microscope. 



Catalogue fully Illustrated, and Circular, containing particulars of the above, by post 



for six stamps, or mailed abroad free. 



UNIVERSITY OPTICAL WORKS, 81, TOTTENHAM COURT ROAD, 

 x.o3sriDOisr, ^w.o-. 



(Formerly of 43, University Street.) 



MICROSCOPICAL SPECIALITIES. 



AUTHUE C. COLE (F.R.M.S.) & SON, 



Having completed arrangements to increase both the supply and variety of their 

 Preparations, beg to announce that their VARIOUS SERIES, a most extensive 

 assortment of PATHOLOGICAL and PHYSIOLOGICAL specimens, CHEMICAL 

 COMPOUNDS, DIATOMACE^ and MISCELLANEOUS OBJECTS, can now 

 be obtained from all the principal opticians in London and the provinces, and by 

 whom Lists will also be furnished on application. For wholesale terms apply to 



St. Domingo House, 53, Oxford Gardens, Bfotting Hill, London, W. 



SUCCESSORS TO GEO. KNIGHT & SONS, 



73, FARRINGDON ST. (late of 2, Poster Lane, and 5, St. Bride St.). 



HOWS MICROSCOPE LAMP. THE MINIATURE MICROSCOPE LAMP. 



HOWS STUDENTS' MICROSCOPE, £5 5«. THE POPULAR BINOCULAR MICROSCOPE, £12 12». 



Rock Sections and othek Mickoscopic Objects. 



m:iciioscofic specialities 



ILLUSTRATING STRUCTURE IN THE VARIOUS BRANCHES OF 



^S= ENTOMOLOGY, ^XZt.^ 



T^t PREPARED AND SOLD BY post free, 



2/and3/Sch. FREDERIC ENOCH, on application. 



30, RUSSELL BOAD, SEVEN SISTERS ROAD, LONDON, N. 



