234 THE HISTORY AND DEVELOPMENT OF THE MICKOSCOPE 



Fram ' microx-opr of Mi->srs. Watson and Sons. We illustrate it in 

 fig. IS'.I. IT i> >tron<i' mid rigid, and its workmanship is of the 

 order. It has a completely steady tripod foot with a spread 



Ki,,. 1 ,-,,._ | icrk's liritish student' nn.-i-oscope (1898). 



