154 -N'l'-W' YORK Z(J01.0GICAL SOCIETY. 



tis. Spleen ami Lyuiph Xodcs. — lioth arc nuicli congested and 

 are extensively tul)ercular. Stomach. — luiipty except for a small 

 amount of yellowish thud, no t\>od is present. Intestine and Gen- 

 ito-Crinary Tract. — Xegative. J->rain and Spinal Cord. — Gross 

 examination of the spinal cord after it has hi'en hardened, showed 

 menini-itis. most intense at lower levels. 



MlCKOSCOl'lC i:X.\.MIXATIOX. 



Cervical Cord. — in the upper cervical levels the pia-arachnoid 

 shows a moderate degree of chronic thickening of the memhranes, 

 and in places the connective tissue cells of its structure show evi- 

 dences of recent proliferation, jiarticularly about the vessels, which 

 are quite universally injected. In the lower cervical regions the 

 membrane shows in addition a ver\- marked serous exudate, which 

 in places contains a good manv leucocytes, chiefly mononuclear 

 cells, but in ])laces there are a good many ])olynuclear ones. The 

 cellular exudate is most appaient about the l)lood vessels, which 

 are mostly congested. 



The substance of the cord shows a very general dilatation 

 of the lymi)h channels, ])articularly of the ])eri\ascular spaces, 

 and in some ])laces the lacun;e in which llu' cells are lodged are 

 also dilated, this without aiijjarent shrinkage nf the ganglion 

 cells. 



The vessels of the cord are injected and a few of them show 

 a slight exudate of small round cells into the adventitia. 



Sections comi)ared after the Marcliii method >how occasional 

 degenerated fibers, chiefly in the posterior tracts and most numer- 

 ous in the column of (loll. ( )ccasional degenerated fibers are also 

 found in the descending tracts, but nothing like a swstematic de- 

 generation is evident in them. 



Sections stained with the .\eisl l)lue, show a \vr\ general dis- 

 integration of the chromatic ]ila(jues of the ganglion cells, some 

 of them are still evident but show lack of staining affinitx', others 

 show a finely granular disintegration of the iila(|ucs. These evi- 

 dences of degeneration arc ver\' general and in some places amount 

 to actual cytoclasis ; it is more than ])ro])able that many of the 

 alterations are of post-mortem origin. 



Ihyr.^al Se;^inents. — Scries of sections taken in tlu- uii]Hr. mid 

 and lower dorsal segments show alterations ver\ liki' th^^e de- 

 scriberl in the cervical region, except that the lesions increase in 

 intensity as the lower levels are reached and, though altogether 

 sinn'lar to those described in the ct-rxical r(.'gi<>ns. arc <>f much 



