THE FEMALE REPRODUCTIVE ORGANS 311 
stroma. At these points the nuclei are hyperchromatic. The lower 
portion follows closely the description given above save that the glandu- 
lar spaces are much larger. They contain pink glandular material with 
admixture of compound granule cells. At the convexity of the tumor 
the acini are especially large. Here they contain a pink granular mate- 
rial which stains more intensely than the other granular contents and, 
too, inside of this intense pink material are sharply circumscribed 
areas of yet more intensely pink staining material. This latter sub- 
stance has a streaming appearance under the high power. This stream- 
ing appearance is due to elongated areas of less dense material which 
are placed with their long axes parallel. This lower portion shows, 
furthermore, even with the naked eye, two large cysts which are lined 
by epithelium and contain a very small number of compound granule 
cells. The capsule at the lower polq is worthy of note from the extreme 
dilatation of its capillaries. 
A papillary adenoma was found in a wild turkey 
(Fig. 26) and a mixed cell sarcoma in a King parrakeet 
{Apromictus cyanopygius). None of these tumors sent 
out metastases. 
Interest in the avian reproductive tract from a patho- 
logical standpoint centres around the tumors as already 
given, and abnormalities in egg-bearing. Among our 
specimens there have been many cases of soft shelled eggs 
apparently blocked in the oviduct, of "egg-binding" and 
of the inspissated-egg-remains in the abdominal cavity. 
These conditions are well known to veterinarians and are 
explained on the basis of improper food, immaturity of 
the bearing fowl, injury and inflammations of the cloaca 
and oviduct. I made an attempt to associate these con- 
ditions with infectious disease incidence and with the 
normal egg size. The results are not harmonious. No 
relation existed between general or local infection and 
any of these conditions. Gallinaceous birds with their 
large eggs show the highest percentage (2.3 per cent.), 
but Anseres with a somewhat larger relative Qgg size 
show 1.6 per cent. Passeres, with eggs of very variable 
size but relatively large pelves, have an incidence of .6 per 
cent. Struthiones' eggs are relatively smaU; their inci- 
dence is 1.5 per cent. 
