. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 28 observations are in harmony with the earlier studies of His ^) on the myelospougium of the human embryo. 1 have found a neuroglia syncytium in the brain of the teleost Batrachus, in which the conditions for its study are unusually favorable. A broad zone of the brain wall next to the third ventricle contains so few nerve cells and processes that it affords an unobstructed view of the neuroglia. Figures 1 and 2 have been made from camera drawings of sec- tions (6 |fO of an adult brain which had been hardened in Müller's flu
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 28 observations are in harmony with the earlier studies of His ^) on the myelospougium of the human embryo. 1 have found a neuroglia syncytium in the brain of the teleost Batrachus, in which the conditions for its study are unusually favorable. A broad zone of the brain wall next to the third ventricle contains so few nerve cells and processes that it affords an unobstructed view of the neuroglia. Figures 1 and 2 have been made from camera drawings of sec- tions (6 |fO of an adult brain which had been hardened in Müller's fluid. Nucleated columns or axes of protoplasm extend outward in radial manner from the ventricle. In the ependymal region the columns. Fig. 1. Neuroglia Syncytium of Batrachus tau. Lateral wall of the third ven- tricle. X 844. are expanded and confluent, and are continuous with the internal limiting membrane. Neighboring columns are united at various levels by broader or narrower protoplasmic bridges, as His has shown in his Fig. 2, and by many exceedingly fine filaments. The latter extend from the columns everywhere and join in delicate nets. These slender filaments, which play so important a part in completing the reticulated syncytium, usually escape observation in sections treated by the silver 1) His, Wilhelm, Zur Geschichte des menschlichen Rückenmarkes und der Nervenwurzeln. Abhandl. Klasse der Königl. Säch- sischen Ges. d. Wissensch., Bd. 13, No. 6, Leipzig 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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