196 MALL. [Vor. XIX. 
No. 134. 
Ovum, 17 x Ir mm.; vesicle within, which is compressed, 
measures in the sections 9 x 3 mm. 
Dr. G;, N. Sominer, TrentcnyNa- 
A number of the sections of this unique specimen were sent 
me by Dr. G. N. Sommer, of Trenton, N. J., who also informs 
me that the ovum had been passed with considerable pain 
and hemorrhage by a young multipara, due to the introduction 
of a bougie by the woman to produce abortion. The monthly 
period had been five days overdue when the abortion occurred. 
The bougie had been introduced several days earlier. 
In stirring up the ovum the woman punctured it and it then 
became filled with mother’s blood, which formed a clot around: 
the embryo. The leucocytes invaded the walls of the ovum, 
the stem of the vesicle and even the blood-vessels of the em- 
bryo, and show all stages of fragmentation within the tissues 
of the embryo. 
The vesicle itself is most interesting, as it shows the effect 
of an infraction upon a very young normal embryo. The 
Fic. 134a.—Section through the ovum and embryonic vesicle. The um- 
bilical vesicle is torn and collapsed. The invagination of its walls 
and the myotome-like bodies are shown in Figs. b and c. B, blood 
clot; L, leucocytes. 
