

BAIRD &TATLOCK (LONDON) LTD. 



1330-1337 



Dissecting Microscope Y. (Bausch & Lomb's). 



Base. Metal ; horse-shoe form. 



Pillar. Round; of metal ; 114 mm. from top to base. 



Lens. Doublet, Coddington, Triple Aplanat or Hastings Triplet regularly supplied. 



Lens Arm. Jointed so that entire field of stage can be covered ; maximum distance from centre of pillar to centre 

 of lens, 90 mm. ; arm may be removed for substitution of erecting body ; extra removable support provided for 

 attachment of Abbe Camera Lucida, which may be raised or lowered to get full field of view. 



Focussing Adjustment. By standard rack and pinion, with a knurled head on either side ; range 60 mm. 



Stage. Plate glass, 90 by 80 mm., removable ; second set of grooves beneath stage for black and white metal 

 plate, supplied for use as opaque background ; extra long spring clips attached to stage support ; holes for hand 

 rests in edges of stage support. 



Hand Rests. Mahogany, 160 mm. long ; attached to edges of support and steadied by metal frames ; detach- 

 able but included in outfits. 



Mirror. Plane and concave, 65 mm. in diameter ; mounted on swinging arm. 



Case. Of wood, neatly finished and fitted with catch. 



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