JAMES SWIFT & SON, 



Manufacturers of Optical and Scientific Instruments, 



Contractors to all Scientific Departments of H.M. 

 Home and Colonial and many Foreign Governments. 



GrandsPrix,DiplomasofHonour,and Gold Medalsat London, Paris, Brussels, etc. 



CROSCOPES 



AND OTHER 



INSTRUMENTS FOR 



ALL BRANCHES OF 



^^ GEOLOGY, 



MINERALOGY, 



PETROLOGY. 



Sole Makers of the 



"DICK" MiNERALOGlOAL MICROSCOPES. 



Dr. A, HUTCHINSON'S UNIVERSAL 



GONIOMETER. 



UNIVERSITY OPTICAL WORKS, 

 81 TOTTENHAIVi COURT ROAD, LOI^DOPy, W. t. 



Watson's 



Bcroscope^ 

 Geolog^y. 



for 



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 Ceologry supplied. 



WATSON'S Microscopes are guaranteed 



for 5 years, but last a lifetime, and they 



are all 



BRITISH IVIADE at BARNET, HERTS. 



W. WATSON & SONS, Ltd. (estabushedjsst), 

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



Works:— HIGH BARNET, HERTS. 



