MEDALS AND HIGHEST AWARDS 



London, Paris, Philadelphia, l^BSfc. Antwerp, Sydney, &c^ 



ROSS' 



IMPROVED 



MICROSCOPES, 



WITH 



NEW PATENT 



FRICTIONLESS 



FINE- 

 ADJUSTMENT, 



AND 



ZENTMAYEFS 



Patent Swinging 



SUBSTAGE 

 ARRANGEMENT, 



FOR 



obtaining any degree 



of 

 Oblique Illumination. 



ABOUT 



25 per Cent. 



less Cost 



than former 



MODELS. 



PULL DESCEIPTION AND CATALOGUE ON APPLICATION TO 



:ROSS ^.ISTID oo., 



U2 (REMOVED PHOM 164), NEW BOND STREET, \ONDON. 



