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staining plague bacilli are seen in the sections. The inguinal 

 glands exhibit an increase of connective tissue at the hilus, great 

 cedema, general vascular dilatation, and engorgement with hyaline 

 degeneration of the rarefied vessel walls. A moderate number of 

 plague bacilli are present in the inguinal glands. In the spleen 

 the Malpighian corpuscles are small and the pulp spaces are not 

 very distinct, being crowded with many poljiiuclears. The erythro- 

 cytes are only moderately numerous. The lymphatic endothelia of 

 the pulp spaces have proliferated to a moderate extent, some of them 

 showing two or three nuclei. The splenic sections contain innum- 

 erable plague bacilli; however, they are not present in such solid 

 zoogloeal masses as are frequently seen in primary buboes, but in very 

 dense groups consisting of many hundreds of bacilli, between which 

 the tissue cells are only sparingly seen. This condition is most 

 marked in the peripheral lymph sinus. In the pulp spaces the 

 bacilli are less numerous, though present to a large extent. A great 

 condensation of bacillar masses is also seen at the peripheries of 

 some of the Malpighian corpuscles, while their interior is almost 

 entirely free from microbic invasion. Phagocytic cells containing 

 bacteria are not seen in the spleen. The kidneys show a most pro- 

 found degree of cloudy swelling of the tubular epithelia, with the 

 presence of much granular material and some hyaline casts. All the 

 vessels are much dilated and engorged, particularly the glomerular 

 capillaries. Here and there in the glomeruli an incomplete fibrin 

 thrombosis is met with. Groups of plague bacilli are found in 

 the glomerular and intertubular vessels, some of them amounting 

 to fairly dense masses of bacteria. A very few isolated bacilli are 

 seen here and there in the uriniferous tubules. The hepatic sec- 

 tions exhibit veins and capillaries much dilated and engorged with 

 an increased number of leucocytes. The parenchyma cells are 

 vacuolated and coarsely granular, their nuclei often being poorly 

 stained and even lost. The capillaries show small, loose groups of 

 plague bacilli, but nowhere a complete occlusion by dense bacillar 

 masses, as seen in other cases of bubonic plague, with metastatic 

 bacterial emboli of the liver. In the pulmonary sections the veins 

 and the interalveolar capillaries are greatly dilated, and the latter 

 here and there contain small, loose groups of plague bacilli. Very 

 few single bacilli are seen in the alveoli. Here and there they are 

 in contact with the wall, so that their derivation from the intracapil- 

 lary groups is probable. 



