JAMES SWIFT & SON, 



Manufacturers of Optical and Scientific Instruments, 



Contractors to all Scientific Departments of H.M. Home 

 and Colonial and many Foreign Governments. 



Grancis Prix, Diplomas of Honour, and Cold 

 M edals at London, Paris, Brussels, etc. 



ICROSCOPES 



AND OTHER 



INSTRUMENTS FOR 



ALL BRANCHES OF 



GEOLOGY, 



MINERALOGY, 

 PETROLOGY. 



Sole Makers of the 



" DICK " MINERALOGICAL 



MICROSCOPES, 



Dr. A. HUTCHINSON'S 



UNIVERSAL GONIOMETER. 



University Optical Works, 



81 TOTTENHAM COURT ROAD, 



LONDON, W. 1. 



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 Ceolog'y supplied. 



WATSON'S Microscopes are guaranteed 



for 5 years, but last a lifetime, and they 



are all 



BRITISH MADE at BARNET, HERTS. 



W. WATSOIM & SONS, Ltd. (established isst), 

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



Works :-HIGH BARNET, HERTS. 



