No. 1.] ORIGIN OF HUMAN MONSTERS. 231 
The changes in the broken embryo are practically the same 
as in the unbroken one, although they are more advanced. 
Only the head, extremities and cord remain entire, and in 
Fic. 207b—Photograph of the interior of the ovum, showing both em- 
bryos. Natural size. 
these the changes are more marked than in the corresponding 
parts of the unbroken embryo. In the former it is practically 
a mass of individual cells, while in the latter the brain is 
swollen and quite solid. 
No. 209. 
Ovum, 20 x 15 x 10 mm.; embryo normal in form, about 
two and one-half weeks old. 
Dr Ge N.4j-sommer, Trenton, N. J. 
“The woman from whom the specimen was obtained 1s 
thirty years old. Three years ago she had a miscarriage 
during the third month of pregnancy, and three months ago 
she was delivered of a monster at the end of gestation. The 
specimen was one of hydrocephalus and spina bifida with 
hydramnios, fully eight liters of fluid coming away at the 
time of delivery. She menstruated the first time yesterday 
since her confinement, bleeding profusely all day, and in the 
evening the ovum came away with a few blood clots. Within 
the sac I could see the embryo, about 5 mm. long, attached 
to the chorion by the cord.” 
