THE MICROSCOPICAl, ADVERTISER. 



Dr. HENRI VAN HEURCK'S MICROSCOPE 



FOR HIGH-POWER WORK AND PHOTOMICROGRAPHY, 



AS MADE BY W. WATSON & SONS TO THE SPECIFICATION 

 OF Dr. VAN HEURCK OF ANTWERP. 



Fitted with fine adjustments of utmost 

 sensitiveness and precision, not 

 liable to derangement by wear. 



Has Rackwork Draw-tube to adjust Ob- 

 jectives to the thickness of Cover 

 Glass. 



Can be used with either Continental oi 

 English Objectives, the body length 

 being variable from 142 to 300 milli- 

 meters. 



Fine adjustment to Substage. 



As Figured, with 1 Eyepiece, 

 (but without centering 

 screws or divisions to 

 stage) $92 50 



Also made with Continental 



form of foot 90 00 



Without Rackwork to Draw- 

 tube 80 00 



Full detoriptlon of the 

 above inttrument, and 

 illuttrated catalogue of 

 Microscopes and appa- 

 ratus, also classified 

 list of 40,000 Micro- 

 uj^^__ icopie Objects for- 

 ^^^""^ warded post free on 

 application to 



Id. 

 & 

 SINS, 



313 High Holborn, 



^^^^^^^ LOWDOK, W. C. 



MHH^^^^HRJ And 



78 Swanston St., 



HELBOIJKIVE, 



AUSTRALIA. 



ESTA B 

 1837. 



Awarded S7 GOLD and other Medals at the principal International Exhibitions of the World 



