199 / 1042
176
e
H
E
M
of 6xing it, it would rife
~t
6r!t
~Imoa
Cpontaoeoufiy,
()r at bU on the firfi application of the grntldl heat.
We have an infiance of this in blood, or aay other ani·
m~l. n(atter,
that is pafcélly pmrcfied; which containing
R
volatile alkali, either
form~d
or extricmd by putre·
f~~ion,
lets go this principie II'hen diUilled, even belore
the firfi phlegm: and, for this reafon, when putreGed
blo0d is to be an3lyfeo. it mua by no Aleans
be
dricd,
like frenl blood, before dillillatioo; for all the voJatile
alkali would by that means be dilJipated and loa at
ooce.
Tbough blood Rnd other animal·matters afl'ord no
~xed
alkali, but, on the contrary, yield much voJatile
~Ikali,
it doth not therefore folloll' that
311
the acid,
\vhich thoCe Cubflances comained befare they were ana·
Jyfed, is employed in the produaion of a voJatile aJo
hli.
F/rjh
analyfod. lnjlanced in
Bu¡'
INTo an alembic or rctort, placen in a fand·bath, put
{ame lean beaf. fromwhicb you bave carefully Ceparated
all the fato
Difiil till oothing more will riCe. In this
firfl dillillation a phlegm will come over, weighing at
)e.1I half the maCs of the diflilled flelb. In thc retort
yon will find a matter almofi ory, which you mufi after·
wards diflilwith a naked 6re in
R
reverberating furnace,
uking the ufual precautioos. There will come over at
fi rll a little phlegm replete with volatile aJkali; then a
\'olatile aJkali in a dry form, which wilJ fiick to the
t Jes of the velfel; and alfo a thick oil. After the di·
flillatlon there will be left in the retoTt a blaek, Ibining,
llgbt co.l. Burn it to albes in5he opco air, aod lixivi·
áte tboCe albes: the water of tbe lixivium will have no
alkaline property, but will fllew fome tokeos of its con·
taining a liale fea.'falt.
The flelb of 3n animal, as appears from the procefs,
yields much the Came principies with its blood: aod it
cannot be otberwife; becaufe it is formed altogether of
materials furnilbed by the blood.
.
Dona
allalyjed. ln}1anced in
OX·BMU.
CUT into pieces the bones of a leg of beef, earefully
feparating all the marrow. Put themioto a retoTt, and
dinil them in a reverberating furnace 28 ufu21. Aphlegm
will come over 6rrt; then a \'obtile fpirit, whieh will
become fironger and nronger ; afterwards a volatile falt
in a dry form , with fome oil ; and, lafily, a black oil,
with a little more volatile falt. There will be left in
the retoTt a charreo maner, fro01 which a Hule fea·Calt
may be extraéted. Reduce this charred maner
10
albel,
by burning il in the open airo Thefe albes will give
fome flight tokens of a fixed alkali.
The analyfis of bones proves, that they confi fl of the
f?me principks \Vith fldh and blood ; and the fame may
be f¡id ih general (lf all mancrs that are truly animal,
that altually con{Jitute any pan of an animal.
.Animal Fal Annlyfod. ¡njlanced in M.,lcn·Su(l.
PUT as much munon.fue¡ as you pleafe into a gl:lÍs
retor!, only
~aking
care that the ve([tI be but h.M fu ll ;
l:ud dillil with degrees of fire as ufua!. A pblegm Cme!·
s
T
R
Y.
Jing of the fuet will rife firfl, and foon grow
very
acid,
After this fome drops of oil will come over, and be fol.
lowed by a matter like oil, in appearance, when it comes
over; but it will fix iD the receiver, and acquire 2 con.
liflence fomewhat fofter than fuet. This kiAd of butter
of Cuet will continúe to rife to the end of the diflillation ;
and there will be left in the retort a fmall quaotity of
eharred matter.
Eggr analyfod. lnjlanced in Pul/el'r EaJ.
Pu T fome hens eggs in water, and boil them till they
be hard. Theo feparate the yolks from the white!.
Cut the wbites into little bits;
pUl
them into a glafs cu.
curbit; 6t on a head and receirer; diflil io a
D.lmu",
1!Iari~
with degrees of fire, raifing it towards the ead tO
the flronge!l hm which that buh can give; that is, to
the heat of boiling water. There will come over an a·
queous liquor, or infipid phlegm; the quantity whereof
will be very confiderable, feeing it wiU make about mne
tenths of the whole mafs of the whites of the eggs. Coo.
tinue your dínillation, and keep the water iD the bath
cooflantly boiling, till not,.a drop more of liquor will
Q.
fcend fro01 the alembic. Then unlute your velfels.
ID
the cueurbit you will find your whites of eggs conGder·
ably IbruoK in their bulk. They willlook like little bit.
of brown g!afs, and be hard and brittle.
Put this reGduum into a glafs retort, and difiil,
as
uCual, in a reverberatiog furnaee with degrees orheat.
There will come over a volatile oily fpirit, a yeUowoil,
a volatile falt in a dry form, and, at lafi, a
bl~ck
thick
oil. Thare will be left in the retoTt a charred matter.
Reduce alfo ioto the fmallefi pieces you can the hard
yolkl of the eggs which you feparated from the whites.
Set them in a pan over a gentle 6re: nir them with a
flick till they turn a linle browo, aod difcharge a fub·
flanee like melted marrow. Then put them iota a new,
flrong, canvaCs bag, and prefs them 1letweeo two iroo
plates well heated; whereby you will obtain a coofider.
able quaotity of a yellow oil.
Let what remaios in the bag be diflilled iD a retort Cet
in a reverbcrating furnace : it will 'give you the fame
priociples as you got from the whites.
Of the two perfealy diflinél fubnances that coollitute
the egg, the yolk contains the embryo of the chick, and
il deftined to hatch it : the white is to ferve for tbe
oOl1rinlmeot of the chick when it is formed.
Thcfe two matters, though they containthe very fame
principies, yet differ confiderably from each otlter; aod
chiefly in this, ¡hat their priociples are nOI iDthe fame
proportioos.
The white of an egg contains fa mucb phlegm, that it
feems to confifi almofi totally thereof. AII the aqueous
liquor, obtained by diflilling il io the
baln:uln maril.
is, properly fpeaking. nothing but pure water; for no
chemic.1 trial can difcover in it either an acid or a voJa· ·
tile alkali ; or any ver)' perceptilbe oily parto
And yet
it mua contaio fome oil, becaufe the liquor that iifes
lafl is a little
bitte~ifll
to the tafle, and Cmells fomewhat
of empyreuma. But the principies fromwhich it derives
thefe proper\ies are iD too Cmall quantities
10
be difiiaél.
11
perccived.
I~