DISEASES OF BLOOD AND BONE MARROW 113 
but a few distinct promyelocytes are found. The hyperplasia is invading 
cartilaginous bone with absorption. In some places cartilage 
is of fetal type. Perichondrium is active but there is no round cell 
infiltration. Ossification is imperfect at costochondral junctions. Kidney 
shows granular and vacuolar degeneration of epithelium ^vith flattening 
of tubular lining. Nuclei are for most part normal. Epithelium of 
tufts and Bowonan's capsule is likewise granular and vacuolated. Dis- 
tal and discharging tubules seem to be most affected. No well defined 
casts are found. 
Liver. — The fine markings mentioned in the notes correspond to 
areas of infiltration of lai-ge pale mononuclears without granules. There 
is no fibroblastic or polynuclear increase around them. Very small 
necroses seen in hepatic lobules. "Very slight increase of connective 
tissue is noted. 
This seems to be a tumor of true myelocytic origin; 
none of the cells was of the plasma type as usually 
depicted. The second case stands in the files as a mye- 
loma, yet the full description and slides have been mislaid. 
It is cited briefly for record. 
Samoli Ostrich {Striithio molybclophanes). Adult 6. Would not 
eat for three weeks. 
Diagnosis. — Tuberculosis of lung, liver, spleen, kidney, mesenteric 
and cervical lymph glands. Myeloma of periosteum of pehns. 
Skeleton and Muscles. — Large tumor mass lying on inside of pelvis 
measuring about ten inches by twelve inches with a thickness of about 
four inches. It is sharply defined and separated from adjacent muscle 
by a capsule. Inner border is directly below the peritoneum, and outer 
border lies directly on bony pelvis. Traced to its origin it seems to 
come from pelvis yet tumor peels off bone easily, leaving a rough sur- 
face. The tumor is soft and succulent, of a red-gray color and contains 
some fat and much irregularly placed masses of bony tissue, 
