8J: 



BAKER S TRAVELLING MICROSCOPE. 



over it. The Bod}' (Fig. 41) slides in a tube which is attached to 

 a stem that carries at its lower end a small Stage and Mirror. The 

 Stem itself contains a fine adjustment that is worked by a milled- 

 head at its summit; and near to this is attached by a pivot-joint 

 a pair of legs, which, when opened out, form with the stem a firm 

 tripod support. The coarse adjustment having been made by 

 sliding the body through the tube which grasps it, the fine adjust- 

 ment is made by the milled-head ; and thus even high powers may 

 be very conveniently worked. The legs being tubular, one of them 

 is made to hold glass dipping-tubes, whilst the other contains 

 needles set in handles, with three short legs of steel wire, by 

 screwing which into the stem and stage, the instrument may be 

 used (though not without risk of overturn) in the vertical position. 

 Where the extreme of portability, however, is not required, a 

 folding foot is supplied, which enables the Microscope to be used 



Fig. 41. 



Baker's Travelling Microscope. 



in the vertical position with satisfactory security and steadiness : 

 and the instrument thus fitted can be packed into a small flat box 



