164 MALL. [Vour. XIX. 
appears necrotic. The mesoderm is fibrous, more or less 
invaded by leucocytes and covered in part with a very active 
syncytium. The cavity of the ccelom is partly filled with a 
granular magma, in which are imbedded some cells. 
No. 58. 
Ovum, 20 x 18 x 12. 
From Dr. Howard, Cleveland, Ohio. 
“The specimen is from the first pregnancy of a woman who 
has been married for one year. The duration of the men- 
strual periods is usually from 3 to 4 days, the last one having 
ended July 25. The August and September periods were 
passed, and September 30 she had a hemorrhage which she 
believed to be the usual menstruation; this ended October 1 
Fic. 58a.—Photograph of the ovum with the piece to which the vesicle 
is attached cut out and turned over. 
with the abortion of the ovum. The time between the begin- 
ning of the last period and the abortion is 71 days. Cohabi- 
tation July 25 to August 5 and again on August 15, or sev- 
, eral days before the first lapsed period.” 
The ovum is only partly covered with villi and is filled with 
a jelly-like mass of magma. Floating within this mass there 
