Note 15 — II. ON THE PLACES OF ORIGIN OF THE WHITE BLOOD CORPUSCLES.

Many authors, e.g. Arnold, explain this double staining of the eosinophil cells by the presence of eosinophil and mast cell granulation side by side. That this is certainly not the case is shewn by the fact that the "basophil" granulation of the eosinophil cells does not in metachromatic staining shew the metachromasia characteristic for the mast cells.