
892 The American Naturalist. [October, 
ster Millie-Christine, aged twenty-two, in whom the right shoulder 
of one individual touches the left of the other. 
The faces of these two little girls closely resemble each other ; 
they have a rather old and worn appearance, but the mental and 
physical strain to which they have been subjected since leaving 
their own country aose account for ig to a certain degree. 
In fi the t much more so than 
petwech ordinary brothers and sisters, d ee more than is often 
the case between twins of the same sex. 
It is only when one examines them. in profile that it can be 
seen that they are united by the posterior pelvic wall as com- 
pletely as the famous Hungarian pygopage, Helen-Judith, descrip- 
tions of whom may be found in all the old works on monsters. 
The angle formed by the bodies—the point of the V repre- 
senting the trunks—is made by the intimate union of the sacral 
and coccygean regions at the center, and those of the four nates 
by the lateral parts. One finds there a real saddle, of which the 
bony skeleton resembles a wooden saddle similar to those of the 
Breton horsemen. There is a single pelvis of exaggerated size, 
consisting of four iliac bones, to which are attached the four legs, 
which are well formed, if one can judge from the gambols in 
which these young persons indulge without difficulty. 
Beneath the sacral conjunction, in a quadrilateral, dome-like 
space, limited by the origin of the four lower limbs, there is found 
a region the description of which is of the first importance in the 
history of monsters. In the language of a German gynecolo- 
gist who is very exact on this point, and also of M. Isch-Wall, 
there would seem at first sight to be a single set of organs; one 
urethra, one uterus, and one anus. It is certain, however, that 
there are two bladders, for a desire to urinate is not felt by both 
individuals at the same time ; in this they resemble other pygo- 
pages, and it is easily understood if one believes that the allan- 
toides are formed when the union of the embryos takes place, and 
by reason of their very anterior situation, they are not close to the 
point of contact, which is posterior. 
he other internal genital organs are double. 




