1 82 American Quarterly Microscopical Journal. 



ending in death. No general convulsions occurred at any 

 time. 



With a regard for the interests of science, which cannot be 

 too highly commended either for its intelligence or its self-de- 

 nial, the parents reluctantly consented to a post-mortem exami- 

 nation. 



Sectio cadaveris, 24 hours after death. Present, Drs. C. W. 

 Earle, T. C. Duncan, and the writer. 



The body was not very much emaciated; the disease having 

 run an unusually rapid course, the wasting of the body was 

 somewhat less than usual. 



The Head. Very slight adhesions were found between the 

 dura mater and the calvarium. The dura mater was opaque 

 and slightly rough, and its usual glistening appearance was 

 gone. Along the line of the sagittal suture, numerous white 

 elevations as large as bird-shot were seen. The vessels of the 

 dura mater were engorged with blood. Well-marked fluctua- 

 tion was felt when pressure was made upon the surface of the 

 dura mater. Upon removing the dura mater, the vessels of the 

 arachnoid were found to be greatly distended with blood, and 

 inflammatory products were plainly visible on both margins of 

 the longitudinal fissure. Upon examining the smaller vessels 

 of the arachnoid with a hand-glass, a great number of minute, 

 bead-like nodules were seen around and along their margins. 

 The microscopic structure of these nodules will be described 

 presently. The common vascular plexus of the pia mater was 

 the seat of very extensive tubercular deposit; upon nearly all 

 the smaller vessels masses of tubercle were deposited: some of 

 these masses were too small to be seen with the naked eye, 

 some were so large as to present distinctly projecting, nodular 

 eminences upon the periphery of the vessel, but the great ma- 

 jority consisted of deposits from the size of a small pin's head 

 to the size of a medium bird-shot. They generally surrounded 

 the vessel, and were either fusiform or spherical. Each nodule 

 was quite isolated, and seemed to be the product of a special 

 center of growth. The appearances described are well shown 

 in Plate XV., Figs, i and 2. The microscopic appearances will 

 be described hereafter. 



The floor of the lateral ventricle was not particularly changed, 

 but the superior surface of the left posterior cornu was soft- 

 ened. The choroid plexus was very pale and anemic. The 



