Zo ConcboIOGtsts. 



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



Begs to inform f'ollcctors and otliers that lie will be pleased to forward on 

 application price list of any GENERA included in his 



LARGE AND VARIED STOCK OP SHELLS. 



SELECTIONS SENT ON APPROVAL. MUSEUMS SUPPLIED. 



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



Address— H. B. PEESTON, F.Z.S., 

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



T«wo minutes walk from South Kensington Station. 



W. HARRIS, 176, Bristol Street, Birmingham, 



HORTICULTURAL BUILDER, CABINET MAKER, &c. 



Contractor for Fittings and Joinery ^York to The University of Birnuiighain, 

 and the (Queen's Faculty of Medicine. 



Estimates given for every description of Woodvvoik, Cabinet Making, 

 House Carpentry, iV-e. Jirpah-s prnnptly atteiidni to. 



Living Specimens for the Microscope. 



VoIvoa, Spiiogyra, Desniids, Diatoms, Aniti'ba, Arcella, Actinosphpcrium, 

 Vorticclia, Stentor, Hydra. Floscularia, Stejihanocero.s, Melicerta, and many other 

 Specimens of Pond Life. Price 1/- per Tube, I'ost Free. Helix pomatia, 

 Astacus, Amphioxus, Rana, Anodon, etc., for Dissection purposes. 



THOMAS BOLTON, 25, BALSALL HEATH ROAD, Birmingham. 



JAMES SWIFT & SON, 



Mar\ufacturing OptiGiar\Sj 



Sevmi Gold Me.lah airardetl for Ojil'uud Excellence. 



Student's Micro.sco]ie fitted with ".in. and /,in. 

 Objectives, sliding course adjustment, micrometer 

 screw fine adjustment for slow focussing, eye-piece 

 and iris diajjhragm, in Ca})it>et - £5 .5 



Double nose-piece and extra eye. piece 10 



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

 ■;;in. and Jin. Objectives, eye-piece and iris dia- 

 phragm, in Cabinet - " - - £7 15 



Double nose-piece and extra e3'e-piece 15 



Prof. Delepine's microscope, as used in the Birmingham University, with 



course and fine adjustments, extra large stage covered with vulcanite, 5U1. lu\. 



and yVin. Objectives, Abbe condenser N.A. 1-2 fitted with iris diaphram and 



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



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



UNIVERSITY OPTICAL WORKS, 



81, TOTTENHAM COURT ROAD, 

 _^^^__^ LONDON, W. 



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