The Journal of nervous and mental disease . rates into the gray matter. The anterior horns are almost entirely devoid of nerve cellsand fibers. Those cells which remain are seen chiefly in the ACUTE ANTERIOR POLIOMYELITIS 557 extreme periphery of the gray matter, but in different areas atthe different levels, apparently depending directly upon the bloodsupply. They have undergone great destructive changes; aresmaller than normal; the processes appear suddenly broken off;the Nissl granules are arranged in large, coarse, deeply-stainingclumps ; the cells are angular, flat, narrow or spindle-shap


The Journal of nervous and mental disease . rates into the gray matter. The anterior horns are almost entirely devoid of nerve cellsand fibers. Those cells which remain are seen chiefly in the ACUTE ANTERIOR POLIOMYELITIS 557 extreme periphery of the gray matter, but in different areas atthe different levels, apparently depending directly upon the bloodsupply. They have undergone great destructive changes; aresmaller than normal; the processes appear suddenly broken off;the Nissl granules are arranged in large, coarse, deeply-stainingclumps ; the cells are angular, flat, narrow or spindle-shaped, asif they had been subjected to mechanical pressure. Very seldoma normal cell is seen while the majority are mere remnants. Thegroup of cells which are most constant are the the thoracic region the anterior horns are made up almostentirely of scar tissue, very rich in vessels and without any nervecells. Cells of Clarkes columns are not diminished in numberbut show the axonal reaction. The anterior horns throughout. Fig. 6. Same vessel as that pictured, under higher power. are atrophied, more especially in the dorsal region, causing a dis-tinct flattening of the cord over them. The destruction is bilateralwith practically complete involvement of the anterior horns of thedorsal region but with a peculiar destruction in small and largeirregular patches in the cervical and lumbar regions.(To be continued) EPILEPTIFORM ATTACKS DURING THE COURSE OF DEMEN-TIA PRECOX. By Paul Masoin, , OF BELGIUM,PHYSICIAN AT THE COLONY OF GHEEL, BELGIUM. Among 825 patients observed by Doctors Meens and there were 65 cases of dementia prsecox. Of these 65patients five only were subject at times to clonico-tonic seiz-ures of varying character. The occurrence of such seizuresduring the course of this disease is rare, and their pathogenesisis still less understood. The following observations are onlydesigned to furnish data for those who may later desire to takeup th


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Keywords: ., bookcentury1800, bookdecade1870, booksubjectpsychologypathologic