JAMES SWIFT & SON, 



Manufacturers of Optical and Scientific instruments, 



Contractors to all Scientific Departments of H.M. Home 

 and Colonial and many Foreign Governments. 



Grands Prix, Diplomas of Honour, and Cold 

 Medals at London, Paris, Brussels, etc. 



iCROSCOPES 



AND OTHER 



INSTRUIVTENTS FOR 



ALL BRANCHES OF 



GEOLOGY, 

 MINERALOGY, 

 PETROLOGY. 



Sole Makers of the 



"DICK" MINERALOCIGAL 



MICROSCOPES. 



Dr. A. HUTCHINSON'S 



UNIVERSAL CONIOMETER. 



University Optical Works, 



81 TOTTENHAiVI COURT ROAD, 



LONDON, W. 1. 



Wats 



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 Geologry 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 isst). 

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



Works:— HIGH BARNET, HERTS. 



