﻿274 The Philippine Journal of Science 1914 



connective tissue. On section, the cortical substance was gray, 

 with brownish red streaks and blotches following the uriniferous 

 tubules down into the medulla. The medullary substance was 

 similar in appearance to the cortex. The papillae had a con- 

 gested appearance, and were slightly swollen. The pelvis con- 

 tained a large amount of gelatinous and purulent material. Two 

 worms were found embedded in this purulent material. 



The left kidney from pig A-21 measured 11.5 by 5.5 centi- 

 meters. A retention cyst was present on the external surface of 

 the posterior end, and measured 1.7 by 1.3 centimeters. It was 

 deep set in the tissue, and was covered by a thin fibrous capsule. 

 This kidney had several deep notches on its surface, apparently 

 scars from former abscesses or cysts, which gave the kidney a 

 shrunken, uneven appearance. It was of a uniform grayish 

 brown color, and the capsule was easily removed. 



The right kidney from pig A-14 measured 12 by 5.5 centi- 

 meters. The capsule was easily removed. The kidney was of 

 a bluish gray color, and was of soft consistence. The external 

 surface was perforated with numerous small holes, averaging 

 about 0.5 millimeter in diameter, which gave the kidney exter- 

 nally a porous appearance. This was due undoubtedly to rapid 

 post-mortem changes. The inner surface was somewhat flat- 

 tened, having a large scar near the center. Two worms pro- 

 truded from the cut end of the ureters. A large amount of 

 yellowish white purulent material escaped from the ureter when 

 it was cut. 



On sectioning the kidney through its longitudinal axis, the 

 internal structure, especially the cortex and medulla, had the 

 appearance of a sponge. It was perforated with holes and pits, 

 varying from 0.5 to 3 millimeters in diameter. (Plate I, fig. 4, a 

 and 6.) Practically all the parenchymatous tissue was destroyed, 

 leaving merely the connective tissue framework. This appear- 

 ance was particularly prominent in the posterior two-thirds, while 

 the anterior third was badly affected, but not to such a marked ex- 

 tent. The cortex and medulla were gray, except on the borders 

 of the papillae, where the medulla was brownish. Many of these 

 changes were undoubtedly due to rapid decomposition. The 

 papillae were brownish in color, and contained a few pits or 

 vacuoles. 



The calix minor and calix major were brown and considerably 

 distended. Three worms were coiled up in the pelvis of the kid- 

 ney, and, as mentioned above, there were 2 in the ureters, thus 

 bringing to view 5 worms in this particular kidney in one section. 



