BAIRD &TATLOCK (LONDON) LTD. 



1002-1003 



1002' Simple Dissecting Microscope (Leitz's), with adjustment by rack and pinion, movable 

 plane mirror and white glass plate, glass stage in metal frame. Metal hand-rests 

 covered with leather and fitting inside the case. Stand without lenses 



1003' The same, with two aplanatic Steinheil lenses. Magnifications 10 and 20 diam. . . 



200 



Steinheil Lens. 

 1005 



Steinheil Lens. 



1008 



Aplanatic Steinheil Triplets (Leitz's) are remarkable for their large, flat field, excellent 

 definition, and freedom from chromatic aberration. 



1004 



1005' 



1006' 



1007' 



1008' 



1009 



1010 r 





(CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS- 



