JAMES SWIFT & SON, 



Manufacturers of Optica! and Scientific Instruments, 



Contractors to all Scientific Departments of H.M. Home 

 and Colonial and many Foreign Governments. 



Crands Prix, Diplomas of Honour, and Cold 

 Medals at London, Paris, Brussels, etc. 



MICROSCOPES 



AND OTHER 



INSTRUMENTS FOR 



ALL BRANCHES OF 



GEOLOGY, 

 MINERALOGY, 

 PETROLOGY. 



Sole Makers of the 



" DICK " MINERALOCICAL 



MICROSCOPES. 



Dr. A. HUTCHINSON'S 



UNIVERSAL GONIOMETER. 



University Optical Works 



81 TOTTENHAM COURT ROAD, 



LONDON. 



Watson's Microscopes for 

 Geology. 



WATSON & SONS manufacture a 

 special series of Microscopes for Geo- 

 logical work. All have unique features, 

 and every detail of construction has 

 been carefully considered with a view 

 to meeting every requirement of the 

 geologist. 



All Apparatus for Geology supplied. 



WATSON'S Microscopes are guaranteed 

 for 5 years, but last a lifetime, and they 



are all 

 BRITISH MADE at BARNET, HERTS. 



W. WATSON & SONS, Ltd. <E8 TABLI8HED _18 37), 



313 HIGH HOLBORN, LONDON, W.C. 



Works: -HIGH BARNET, HERTS. 



