The KA Binocular Microscope 



Is of great value in all biological 

 work where low and medium 

 powers are employed. Inembroy- 

 ology the true stereoscopic image 

 shows the relative position of im- 

 portant details. This feature is of 

 great assistance to the student and 

 makes the instructor's work easy. 

 Write f 01- booklet 



Bausch & Lomb Optical Co. 



of California 



1 54 Sutter St., San Francisco, Cal. 



