110 



THE MICROSCOPE. 



and also with, a centring and focussing sub-stage, 

 for the adaptation of the achromatic condenser, 

 paraboloid, polariscope, etc. The mirror moves by a 

 double elbow joint, and is arranged to be used at any 

 angle. 



Swift's College or Student's Microscope is a solid, 



FIG. 63. Crouch's New Fine-Adjustment. 



well-made, handy instrument, designed for class use, 

 and it may be expected to take the place of the con- 

 tinental microscope hitherto much employed in our 

 colleges and schools of medicine. 



Crouch's Microscope possesses certain advantages as 

 a cheap microscope, since it combines perfect perform- 



