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next to the capsule, shows a dense infiltration with completely degen- 

 erated erYthroc3'tes and contains hematoidin and hemosiderin. 

 This zone appears as a part of the former lymph sinus; however, 

 this can no longer be distinctly recognized as such. Here, likewise, 

 numerous bacilli are found. Fibrin is quite irregularly and exten- 

 sively distributed throughout the gland. In its interior it is 

 observed to be in the form of a granular deposit and also in the shape 

 of finer or coarser threads. Around the dense masses of bacilli 

 it occurs in the form of fibrillar network, sending fine threads into 

 the masses of micro-organisms. The tissue next to the capsule — 

 i. e., the former Ij-mph sinus — likewise contains a network of fibrin. 

 The small vessels are more or less completely occluded by hyaline 

 (fibrin) thrombi, which are seen both in the interior of the gland 

 and in the capsule. Here and there the fibrin extends from the 

 interior of the vessel, through its wall, into the perivascular tissue. 

 In the blood vessels bacilli, if found, are present in scanty numbers. 

 Kidneys: The renal tissue presents a most striking picture. Sec- 

 tions from both kidneys, treated by Weigert's fibrin method, appear 

 as if the vessels had been injected with a violet-stained gelatin. 

 There is not a normal glomerulus to be seen. All the sections 

 show a more or less complete obliteration by hyaline thrombi. In 

 most of the Malpighian bodies the hyaline thrombosis of the capil- 

 laries is so perfect that both the main branches of the afferent 

 vessel and the smaller capillaries given off from the larger loops 

 are sharply outlined. Most of the thrombi appear perfectly solid; 

 however, some are hollow in the center, as can be seen both in 

 transverse and in longitudinal sections. The endothelial lining 

 of the thrombosed vessels is well preserved. Where the thrombi 

 are comparatively thin, one can see, both in the transverse and in 

 the longitudinal sections, endothelia which are perfectly normal 

 to all intents and purposes. Xowhere do the thrombosed vessels to 

 any extent show a loss of endothelia. Therefore, the thrombosis 

 can not be attributed to a denudation of the vessels of their endo- 

 thelial lining. The capsules of Bowman are likewise normal, 

 though a few of them show a very moderate amount of thickening ; 

 their lining epithelium exhibits no marked changes. In some 

 places the hyaline thrombi are continued into the vasa afferentia, 

 and even into the vessels of which these are branches. Quite com- 

 monly there are seen between the uriniferous tubules parts of such 

 small vessels filled with hvaline thrombi. However, none are found 



