BAIRD &TATLOCK (LONDON) LTD. 



Base. Horse-shoe form. 



1282-1286 

 MICROSCOPE CAM (BAUSCH & LOME'S) 



Pillar. Rectangular in section ; provided with inclination joint and clamping lever to secure instrument in 

 any position, and with stops in the vertical and horizontal positions. 



Arm. Handle type ; of enlarged design, providing ample space for manipulation of any object desired ; grooved 

 at base for mechanical stage A. 



Body Tube. Outside diameter, 39 mm. ; provided with society screw thread ; standard size eyepieces are used 

 No. 1344; draw tube graduated in single millimetres 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 knurled micrometer screw head in two parts of different diameter for slow and rapid movement, the larger 

 graduated into 100 divisions, each equal to .0025 mm. in vertical movement, and provided with a hinged indicator, 

 which may be turned back from the milled head. 



Stage. Of metal, covered with vulcanized rubber ; measures 125 by 115 mm. with a distance of 75 mm. from 

 its i iMitre to base of arm ; provided with spring clips. 



Substage. Complete with swing-out condenser, and so arranged that all substage accessories, inserted into 

 the upper sleeve, may be easily employed ; adjustable by standard rack and pinion ; upper iris diaphragm of 

 dome shape, self-locking, combined with Abb6 condenser, the whole easily removable from substage ; Abbe 

 condenser removable from optical axis by a double swing movement to one side, releasing upper iris 

 diaphragm for use; lower iris diaphragm adjustable laterally by rack and pinion for oblique illumination, 

 revolvable about its own axis and mounted on a swinging arm, allowing it to be swung entirely out of the 

 optical axis. 



CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



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