Manufacturers of Optical and Scientific Instruments, 



Contractors to all Scientific Departments of H.M. Home 

 and Colonial and many Foreign Governments. 



Grants Prix, Diplomas of Honour, and Gold 

 Medals at London, Paris, Brussels, etc. 



CROSCOPES 



AND OTHER 



INSTRUMENTS FOR 



ALL BRANCHES OF 



GEOLOGY, 



ERALOGY, 

 PETROLOGY. 



Sole Makers of the 



"DICK" MINERALOCICAL 



MICROSCOPES. 



Dr. A. HUTCHINSON'S 



UNIVERSAL GONIOMETER. 



University Optica.! Works, 



81 TOTTENHAM COURT ROAO, 



LONDON, W. 1. 



WATSON & SUNS manufacture 

 special series of Microscopes for Geo- 

 logical work. All have unique features, 

 and every detail of construction lias 

 been carefully considered with a view 

 to meeting every requirement of the 

 geologist. 



All Apparatus for Ceclogy 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. (es tablished is3 7 ) 

 313 HIGH HOLBORN, LONDON, W.C.I. 



Works:— HIGH BARNET, HERTS. 



