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‘the one to the other. 
* NATURAL HISTORY. 
terrified at the ftrange appearance 
of the double head, endeavoured to 
deftroy the infant by throwing it 
upon the fire, where it lay a fufii- 
cient time before it was removed to 
have one of the eyes and ears confi- 
derably burnt. 
The body of the child was natu- 
rally formed, but the head appeared 
double, there being, befides the pro- 
per head of the child, another of 
the fame fize, and to appearance 
almoft equally perfect, attached to 
its upper part. This upper head 
was inverted, fo that they feemed 
to be two feparate heads united to- 
gether by a firm adhefion between 
their crowns, but without any in- 
dentation at their union, there be- 
ing a {mooth continued furface from 
The face of 
the upper head was not over that 
of the lower, but had an oblique 
pofition, the center of it being im- 
mediately above the right eye. 
When the child was fix months 
eld, both of the heads were covered 
with black hair, in nearly the fame 
quantity. At this period the fkulls 
feemed to have been completely 
offified, except a {mall {pace between 
the offa frontis of the upper one, 
like a fontinelle. 
Obfervations on the fuperior or 
inverted Head. 
‘No pulfation could be felt in the 
fituation of the temporal arteries ; 
but the fuperficial veins were very 
evident. 
The neck was about two inches 
long, and the upper part of it ter- 
minated in a rounded foft tumor, 
like a {mall peach. 
One of the eyes had been confi- 
_ derably hurt by the fire, but the 
other appeared perfect, having its 
full quantity of motion; bug the 
y 
69 
eyelids were not thrown into aétion 
by any thing fuddenly approaching 
the eye ; nor was the iris at thofe 
times in the leaft affeéted; but, 
when fuddenly expofed to a ftrong 
light, it contra@ed, although not fo 
much as it ufually does. ‘The eyes 
did not correfpond in their motions 
with thofe of the lower head; but 
appeared often to be open when the 
child was afleep, and fhut when it 
was awake. 
The external ears were very im-’ 
perfe&, being only loofe folds of 
fkin; and one of them mutilated by 
having been burnt. There did not 
appear to be any paflage leading 
into the bone which contains the 
organ of hearing. 
‘The lower jaw was rather fmaller 
than it naturally fliould be, but was 
capable of motion. ‘The tongue 
was fmall, flat, and adhered firmly 
to the lower jaw, except for about 
half an inch at the tip, which was 
loofe. The gums in both jaws:had 
the natural appearance; but no 
teeth were to be feen either in this 
head or the other. 
The internal furfaces of the nofe 
and mouth were lubricated by the 
natural fecretions, a confiderable 
quantity of mucus ard faliva being 
occafionally difcharged from them. 
The mufcles of the face were 
evidently pofiefled of powers of 
action, and the whole head had a 
good deal of fenfibility, fince vio- 
lence to the fkin produced the dif- 
tortion expreflive of crying, and 
thrufting the finger into the mouth 
made it fhew ftrong marks of pain. 
When the mother’s nipple was ap+ 
plied to the mouth, the lips attempt- 
ed to fuck, 
The natural head had nothing 
uncommon in its appearance; the 
Fg eyes 
