BAIRD &. TATLOCK (LONDON) LTD. 



Bausch & Lomb's Microscopes and Accessories. 



I 



1264-1267 



BAUSCH & LOMB'S MICROSCOPE, PATTERN BH. 



Base. Horse-shoe form. 



Pillar. Round ; provided with inclination joint, having vertical and horizontal stops. 



Arm. Handle type ; grooved at base for attachment of mechanical stage A ; provides ample space for manipula- 

 tion of object. 



Body Tube. Outside diameter, 35 mm. ; provided with society screw thread ; standard size eyepieces are used ; 

 draw tube graduated in single millimeters with every tenth line numbered, adjustable in cloth-lined sleeve, or in 

 metal fitting, if so specified and provided with society screw thread for the use of low power objectives. 



Focussing Adjustment. Coarse adjustment by standard rack and pinion ; fine adjustment of our lever type 

 with two-sized milled head for slow and rapid movement. 



Stage. Of metal, covered with vulcanized rubber ; measures 103 by 101 mm., with a distance of 59 mm. from 

 centre to base of arm ; provided with spring clips, and iris diaphragm so mounted as to be readily detached if desired 

 and screw threads for attaching a substage ring to hold an Abbe condenser. 



Mirror. Plane and concave, 50 mm. in diameter ; adjustable in two planes in a fork, mounted on a swinging arm 

 for oblique illumination. 



Finish. Body tube, with connections, and pinion, milled heads in light lacquer ; other parts, including draw- 

 tube, unless metal fitted, in black. Black body tubes will be furnished in .place of light lacquer, if so specified, 

 without additional cost. 



Case. Of hard wood with polished finish ; fitted with brass lock and key. 



Microscope BH will be furnished with a substage ring and Abbe condenser, 1.20 N.A., at an additional cost. 



CROSS STREET HATTCTN GARDEN, E-C 



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