Abstract
THE Spanish histologist, Dr. S. R. Cajal, on p. 9 of his book “Les nouvelles idees sur la structure du Systeme nerveux,” translated into French by Dr. L. Azoulay, makes the following assertion:—“Les cellules nerveuses sont des unites independantes, ne s'anastomosant jamais ni par leurs rameaux protoplasmiques, ni par leurs expansions nerveuses ou cylindres axes.” (The italics are mine.) I venture to bring this statement forward because recently I have discovered that it is not universally correct; in sections of the medulla oblongata of a young snake, Tropidonotus natrix, prepared according to Cox's modification of Golgi's corrosive sublimate process, I have found a pair of cells on the ventral edge distinctly united together by a protoplasmic process, or, as I would propose to term it, a dendrite. Cox's mercurial method is so far better than the chrom-osmium-silver method, inasmuch as the preparations made by it keep much longer.
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