RELATION OF PLUMAGE TO OVARIAN CONDITION. 175 



ably different, but it was noted that for two or three weeks prior 

 to the above date she had often been observed forenoons sitting 

 in a nest-like depression in the straw. The notes also state 

 that she had been a consistent "singer," keeping up a little 

 crooning note a good share of the time. 



The autopsy revealed the visceral organs normal except for 

 an enormous tumor (Fig. 6) which filled practically all of the 

 left side of the abdominal cavity and caused a marked abdominal 

 protrusion. The tumor was for the most part highly vascular 

 on the outside; it was roughly knobby, the larger knobs being 

 several centimeters in diameter and dark purplish, almost black, 

 in color; most of the smaller ones somewhat more reddish. The 

 freshly removed tumor weighed 289 grams. The bird was not 

 weighed before killed, but after the tumor was removed, most of 

 the blood washed out and nearly all the feathers off, the carcass 

 weighed 2,350 grams. 



The tumor was attached at the normal site of the ovary, 

 though the mesenteries were somewhat adherent to it at other 

 points. There appeared to be no normal ovarian tissue re- 

 maining, nor, for that matter, was any trace found of the im- 

 planted pieces of ovary at any rate anything which was posi- 

 tively identified as such. 



The interior of the large knobs of the tumor exhibited a coarse 

 trabecular structure, the trabeculae being very dark and the 

 matrix of a yellowish brown color. The smaller, softer knobs 

 contained considerable blood, while the others were firm and 

 hard. Greatest length of tumor, measured fresh, 13 cm.; 

 breadth, 9.5 cm. 



The oviduct had the appearance of that in a normal non- 

 laying pullet. 



The tumor was preserved and later referred for examination 

 to Dr. C. H. Bunting, of the Department of Pathology at the 

 University of Wisconsin. He has kindly given us the following 

 description based on his study of the specimen. It seems 

 advisable to publish this in full as a contribution to the knowl- 

 edge of the anatomy of ovarian tumors in fowls . 



"The specimen consists of a somewhat cruciform laked mass 

 approximately 12.5 X 8.5 X 7-5 cm. in size. A distal small lake 



