330 J. M. COON ON A NEW FINDER FOR THE MICROSCOPE, 



necessary variation in its use is to remember to indicate with the 

 right-hand point and keep the slide in such a position that the 

 points are equidistant from any horizontal line on the label. 

 The slide may move vertically or horizontally, but must be 

 adjusted, finally, parallel to its first position, or the object will not 

 be in the field. 



Journ. Quekett Microscopical Old, Ser. 2, Vol. IX., No. 58, April 100(5. 



