12 BULLETIN 960, U. S. DEPARTMENT OF AGRI CULTURE. - 
glandular tissue had occurred, especially into the medullary portion 
of the lobules. Around some blood vessels in the thymus of Sheep 
595 there were many large, coarsely granular cells, which had a 
strong affinity for eosin. These closely resembled eosinophiles, 
except that many were rather large and had nuclei almost circular 
in outline. The lymphoid cells appeared to be normal. Some 
brownish pigment was present, and in a few small veins in Sheep 
590 the erythrocytes appeared as though fused. 
Spleen. — In the specimen from the spleen of Sheep 590 there were 
small areas of congestion in the splenic pulp. The samples from 
Sheep 595 contained very little blood. In both cases some brownish 
pigment was present, and in the tissue from Sheep 590 some cavernous 
veins contained pale and disintegrated erythrocytes. 
Lymph glands. — A mesenteric lymph gland and a small group of 
hemolymph nodes from Sheep 590 were studied. There was no 
indication of an effect on lymphoid cells, but some erythrocyte de- 
struction was apparent. In the lymph gland many endothelial cells 
contained ingested ervthrocvtes in various stages of destruction. 
In the hemolymph nodes there were areas where practically all 
erythrocytes stained very poorly. 
Alimentary tract. — Specimens from the abomasum, duodenum, 
jejunum, ileum, and cecum were studied. There was a well-marked 
infiltration of leucocytes into the mucosa of the various portions 
of the small intestine and the one sample of cecum examined. These 
were of the polymorphonuclear and plasma cell types. Congestion 
accompanied with diapedesis of erythrocytes and edema was present 
in some places, and in all portions of the small intestine the villi and 
that portion of the mucosa next the lumen of the intestine were more 
necrotic than one would expect in an animal that had been dead so 
short a time. 
The glandular epithelial cells were swollen and many small nuclei, 
probably of leucocytes, were very commonly lying in the epithelial 
layer and sometimes in the lumen of the gland. Many such nuclei 
were degenerated. In places the veins contained pale erythrocytes, 
granular material, and sometimes a fibrinlike network and numerous 
leucocytes. 
The lympxx nodes of the ileum of Sheep 590 were edematous and 
contained an unusual number of phagocytic cells, which had in- 
gested erythrocytes and pigment or partially digested granules of 
nuclear material. 
Nervous tissue. — Specimens of cerebrum, cerebellum, medulla, 
and cervical and lumbar portions of the spinal cord were examined. 
None of these was severely congested, though minute hemorrhages 
were formed in various places. These were presumably due to diape- 
desis of the red corpuscles, as ruptured vessels were not found. In 
most hemorrhages the erythrocytes were confined to the perivascular 
^^^■■■M^H^MHHNa 
