[ 27 ° 3 
the colour of pale white-wine, and fomewhat foul : 
after which I clofed the camda with its Hopple c. 
By chemical experiments, this liquor was found to 
be neither acid nor alcaline : being put on the fire, 
it evaporated quite away, and left at bottom a frothy 
neutro-faline fediment. 
Saturday, Oct. 24, I unfiopp’d the canula , and 
drew the fame quantity of water. The infant was 
ill on the Sunday : wherefore I did not difturb him 
that day. Monday the 26 he was better. 1 drew 
five more ounces of water. Tuefday I fuffer’d him 
to take reft. Every time that I made this evacu- 
ation, I bound the head with a ftrong capeline *. 
Notwithftanding thefe precautions, the infant died in 
the night between Tuefday and Wednel'day ; and it 
will prefently appear, that this hydrocephalus was. 
of an incurable fort. I open’d it, and found the 
brain applied again it the dura mater as ufual ; but 
this brain was thin, and as it were fpread out : it 
only formed a kind of thin lack fill’d with water. 
I open’d, and law that the difeafe was nothing more 
than an exceffive dilatation of the two lateral ventri- 
cles, by the waters collected therein. The glandula 
pinealis was almoft wafted, as well as the plexus 
choroideSy of which fome few veftiges only remain'd. 
On the contrary, the other vefiels, which lined the 
infide of this fack, were very vifible. 
As the brain is a foft vifeus without elafiicity, it 
manifeftly appears, that it could not pofiibly refume 
its natural form, how fiowly foever 1 had evacuated 
the 
* A bandage peculiar to the head. 
