. A study of the causes underlying the origin of human monsters : third contribution to the study of the pathology of human embryos . Fig. 309b.—Interior of the chorion, showing the embryo. X 4 times. No. i.] ORIGIN OF HUMAN MONSTERS. 299 central nervous system is markedly dilated and filled withround cells. In front the walls are broken and the roundcells are extended into the tissues of the front of the eye and ear vesicles are also dilated and filled with roundcells. No trace of a lens is seen, and the ear vesicle has twosprouts on its ventral side. The whole epidermis is intact. N
. A study of the causes underlying the origin of human monsters : third contribution to the study of the pathology of human embryos . Fig. 309b.—Interior of the chorion, showing the embryo. X 4 times. No. i.] ORIGIN OF HUMAN MONSTERS. 299 central nervous system is markedly dilated and filled withround cells. In front the walls are broken and the roundcells are extended into the tissues of the front of the eye and ear vesicles are also dilated and filled with roundcells. No trace of a lens is seen, and the ear vesicle has twosprouts on its ventral side. The whole epidermis is intact. No. 310. Ovum, 18 x 14 x 14 mm. Dr. Watson, Baltimore. The specimen is covered with villi which in sections provedto be markedly changed. The mesoderm is hyaline, withvacuoles in which there are free nuclei. The epithelial layeris irregular and invades the wall of the chorion as well as. Fir,. 310a.—Exterior of the ovum. X 2 times. .
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