. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 560 other leucocytes encountered, and there were none outside the thymus within the mesoblast, as is invariably the case in slightly older embryos. The remaining cells of the placode were columnar. In another embryo of 18 mm three well marked leucocytes were detected within a single transverse section of the thymus-epithelium, and there were also two cells in the act of taking on leucocytic characters. In the fourth section in front of the one just mentioned (which lay about the middle of the thymus-element) there was also a


. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 560 other leucocytes encountered, and there were none outside the thymus within the mesoblast, as is invariably the case in slightly older embryos. The remaining cells of the placode were columnar. In another embryo of 18 mm three well marked leucocytes were detected within a single transverse section of the thymus-epithelium, and there were also two cells in the act of taking on leucocytic characters. In the fourth section in front of the one just mentioned (which lay about the middle of the thymus-element) there was also a single leucocyte to be seen lying in the mesoblast some distance from the thymus. In all the sections, with the exception of a very few leucocytes and cells be- coming such in each, all the rest were epithelial cells. (Schluß folgt.) Berichtigung. Aus Versehen ist in dem Aufsatz von ß. Burckhakdt (No. 20/21) die Schwanz- flosse von Laemargus (Fig. 2) in umgekehrter Lage und die Dorsalflosse einer Centrina (Fig. 4) lim einen rechten Winkel verschoben, abgebildet Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Anatomische Gesellschaft. Jena : G. Fischer


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