. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 300 strongly basophilic in staining reaction. Sometimes these granules are densely packed and the mass is sharply circumscribed. When less regular in form the masses assume elongated and crescent shapes. Usually the masses are multiple and situated just beneath the nucleus (Figs. 4, 8). When crescentic they partly encircle the nucleus either from below or from one side. Sometimes they lie free in the vacuoles or they may be closely surrounded by the cytoplasm. After staining with thionin, methylene blue or muchaematin, these
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 300 strongly basophilic in staining reaction. Sometimes these granules are densely packed and the mass is sharply circumscribed. When less regular in form the masses assume elongated and crescent shapes. Usually the masses are multiple and situated just beneath the nucleus (Figs. 4, 8). When crescentic they partly encircle the nucleus either from below or from one side. Sometimes they lie free in the vacuoles or they may be closely surrounded by the cytoplasm. After staining with thionin, methylene blue or muchaematin, these bodies yield a typical mucin reaction. But they are almost equally conspicuous after simple staining with hematoxylin and eosin. As far as staining reactions can be conclusive in the case of mucinous materials, these bodies are proved to be mucin accumulations, but whether they are normal secretory pro- ducts of the cell or the result of beginning degeneration is un- certain. One sees everywhere in the connective tissue, cells whose nuclei are fragmented, undoubted evidence of karyolysis. These cells belong to both connective tissue and the blood. Among the accumulations of blood cells in the vessels are similar cells; these degenerating cells are slightly larger than the normal cells. The blood corpuscles are all of the nucleated type, erythroblasts. Among accumulations of the blood cells are found everywhere the three types: normoblasts, micro- blasts, and megaloblasts. Many are found in process of division, containing two or more rounded nuclei. In cases where two nuclei are present in a single cell, they may be of equal or unequal size; where three are seen, two are small, one large; where four are found, they are of approximately equal size. The process of division seems to be amitotic. However,. Fig. 8. Section of entodermal wall showing mucinous masses (o) in proximal portion of cell; n nucleus of entodermal cell with three nucleoli; b fat vacuoles. Stain, thionin; thick
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