Uo ConcboloQistd. 



H. B. PRESTON, F.Z.S., 



Begs to inlorm (ollectots and otliers tliat ho will hu pleased to forward on 

 application price list of any GliNERA ineiudedin his 



LARGE AND VARIED STOCK OF SHELLS. 



SELECTIONS SENT ON APPROVAL. MUSEUMS SUPPLIED. 



A very fine series of the rarer British Marine Shells now on hand. 



Address— H B PRESTON, F.Z.S., 

 3, Sydney Terrace, Fulham Road, London, SW. 



Ttwo minutes walk from South Kensington Station 



W. HARRIS, 176, Bristol Street, Birmingham, 



HORTICULTURAL BUILDER, CABINET MAKER, &c. 



Contractor for Fittings and Joinery Work to The University of Birmingham, 

 and the Queen's Faculty of Medicine. 



J:^stimates given for every description of Woodwork, Cabinet Making, 

 House Carpentry, &,c. Repairs jn'mptly attended to. 



Living Specimens for the Microscope. 



Voivox, Sjiirogyra, Desniids, Diatoms, Amoeba, Arcella, Actinosphaerium, 

 Vorticella. Stcntor, Hydra Floscularia, fStephanoccros, Melicerta, and many other 

 Specimens of Pond Life. Price 1/- per Tul o. Post Free. Helix pomatia, 

 Astacus, Amijhioxus, T?ana, Ancdon, etc., for Dissection purposes. 



TilOMAS BOLTON, 25, BALSALL HEATH ROAD, Bn;.M:N(;HAM. 



JAMES SWIFT & SON, 



Manufacturing Opticiaris, 



Seven Gol I Medals awarded for Opticid Excellence, 



Student's Microscope fitted with rin. and ^in. 

 Objectives, sliding course adjustment, micrometer 

 screw tine adjustment for slow focussing, eye-piece 

 and iris diaphragm, in Cabinet £5 5 



Double nose piece and extra eye-piece 10 



Fig. 2 Student's Stand, as per illustration with 

 fin. and ^in Objectives, eye-piece and iris dia- 

 phragm, in Cabinet - • £7 15 



Double nose-piece and extra eye- piece 15 



Prof. Delepine's microscope, as used in the liirmingham Univeisity, with 



course and fine adjustments, extra large stage covered with vulcanite, fin. gm. 



and iVin. Objectives, Abbe condenser N.A 1"2 fitted \\ith iris diaphram and 



special focussing adjustment, triple iiosepiece and eyepiece, in Cabinet £15 



This stand is used in all the principal laboratories throughout the kingdom. 



UNIVERSITY OPTICAL WORKS, 



81, TOTTENHAM COURT ROAD, 



LONDON, W. 



Please mention this Juuvhol in repltjinq io Advertisements, 



