Page:Principles of Microscope.djvu/35

 Rh disclose only the configuration in plan and relief not the internal structure.

A comparison of the white blood corpuscles in Figs. a, e or h, Plate III, with the same corpuscles in Fig. c on the same Plate, will bring this point out clearly.

Reference may be made here to two of the more important fallacies which come into consideration.