Pomona College, Claremont, California 



35 



EXPLANATION OF FIGURES 



Cells from a grandular structure of the parasitic isopod, Grapsiceplion. The 

 reticular network besides being found on the surface of the nuclei actually penetrates 

 them as well. The granules on the reticulum within and without the nuclei represent 

 chromatin. Ths net work in the specimens is of a lighter color than the chromatin; 

 it stains about the same shade as the larger part of the nucleus. The nucleus does 

 not seem to be entirely reticular in structure, but it is so dense and always stains so 

 uniformly that it is impossible to determine. The drawings are X800. 



