THE MICROSCOPE AND MICROSCOPIC METHODS 



21 



FIG. 7. Sectional view of a compound microscope illustrating the course of 



) and indic 

 After Leitz.} 



IG. 7. econa v 



two beams preceding from two points in the object (P and Q) and indicating the 

 subjective interpretation of the image formed on the retina. ( 



