=Head:= Scalp closely adherent to =calvarium=. Calvarium heavy without diploë. =Dura= adherent to calvarium in bregmatic region. Sinuses contain liquid blood. Arachnoidal villi in considerable quantity. =Pia mater= contains considerable clear fluid and shows diffuse haziness and focal thickenings. The diffuse haziness is almost universal and is best marked over the superior surface of the cerebellum. The focal thickenings are of general distribution over the veins of the sulci on the superior surface of the brim and are heaped up to form considerable linear mounds near the region of the arachnoidal villi. The superior surface of the cerebellum is traversed by similar linear mounds of fibrous tissue running at an angle to the laminæ. There is no notable increase of fibrous tissue at the base. =Brain:= Weight 965 grams. The sulcation is roughly symmetrical except in the occipital poles where there is unusually rich and complex but shallow sulcation. The cortical substance is everywhere firmer than normal, but the sulci fail to flare notably. In a few places there is a focal increase of consistence of still greater degree with apparent local hypertrophy (or gliosis with increase of substance). These foci are in the right second temporal gyrus (3 cm. in diameter) and in the left first temporal gyrus (of same size but somewhat less firm) and are of a whitish, waxen appearance, being visible several feet away by reason of their color and apparent encroachment upon the adjacent sulci. The foci are sharply limited by the sulci laterally, but pale out gradually before and behind. The convolutions of the vertex show another type of lesion. The tissue of the greater part of the vertex resembles that of the flanks and base in being firmer than normal and of a grayish pink color. Behind the fissure of Rolando on the right side and behind the anterior limits of the ascending frontal region on the left side the brain tissue of the vertex becomes suddenly still firmer and of a yellowish gray color. This lesion disappears gradually into the occipital microgyria behind and the gyri gradually lose their yellowish tint. The lesion fades away gradually so that it fails to involve the temporal convolutions. The cerebral tissue cuts firmly and smoothly. The tissue of the frontal region is a little edematous. The white matter is of a normal appearance. The ependyma of all the ventricles is somewhat sanded. The fourth ventricle is most affected.