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, Diplomas of Honour, and Gold 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. 



W. WATSON & SONS, Ltd. 



THREE TYPES OF 



MICROSCOPES FOR 



GEOLOGY. 



All have unique features. 



ALL APPARATUS FOR 

 GEOLOGISTS. 



WATSON 



MICROSCOPES 

 are guaranteed for five 

 years, but last a lifetime. 

 Every part of their con- 

 struction has been care- 

 fully considered. The 

 workmanship is the finest 

 possible. 



WATSON'S 

 MICROSCOPE 

 CATALOGUE 



has a section specially 

 devoted to Geology and 

 gives details of many 

 useful and time-saving 



devices. 



Inquiries promptly and 

 fully answered. 



CATALOGUES 

 GRATIS. 



ALL GOODS BRITISH MADE WITH BRITISH MATERIALS. 



313 HIGH HOLBORN, LONDON, England. 



ESTABLISHED 1837. 



