DATA FROM OTHER CASES 
57 
X.—Ovum of Frassi. 
The ovum which is described as of less than 10 days was obtained by 
hysterectomy on account of persistent menorrhagia due to metritis. The 
patient was 40 years of age and had had 11 children—the last 2| years 
previously. Menstruation occurred regularly every 28 days. Her last 
period was believed to have occurred 2 weeks before the operation, but she 
afterwards confessed that that period had been omitted; she had concealed 
the fact for fear the operation would be put off if it was known she was 
pregnant. She had suffered greatly in her later pregnancies. The uterus 
was fixed whole in 5% formalin, and the preservation of the ovum is 
very good. The implantation cavity is wholly surrounded by decidua, and 
there is no “cicatrix.” There are villi all over the circumference, measuring 
from '5 to 1'9 mm. in length, but they are best developed round the sides, 
and least over the apex of the vesicle. Blood-vessels are seen in the base 
of the cord, but there are none in the villi. The implantation chamber 
measures 13x5 mm., and the cavity of the ovum 9 - 4x3'2 mm. The 
embryonic rudiment measures IT7 x *6 mm., and it is regarded by Frassi 
as slightly younger than that of the ovum “ Gle ” of v. Spee. The ovum is 
very similar to that of Eternod, and may be considered to be of the same 
age, namely, 18 to 19 days. 
XI.—Ovum “ Gle ” of Graf v. Spee. 
This was a perfectly fresh aborted ovum in a complete decidual cast, 
expelled 5 weeks after the termination of the last menstruation. The 
preservation of the specimen is excellent, numerous karyokinetic figures 
being recognisable. The patient had been healthy, menstruating regularly 
every 4 weeks, and the abortion was regarded as the return of the period 
a little after its usual date. The internal dimensions of the chorion are 
10 x 8‘5 x 6'5 mm., and the embryo measures 1’54 mm. The stage of 
development of the embryo is slightly more advanced than that of Eternod, 
and the age may be stated as 19-20 days. 
H 
