1000000030

Ir,

ioflc.d of .linilliog rhe hard white of ao egg, \Vith

a , ie\V tOdr.\V otr the

gre.lt

~"antiry

of \Vattr ir cootains,

you Ie,re it fome time

>Ir

that is oor tOO drl', the

greatefl

pan el'

its moillure reparates fpontaoeouny, and

becomes very feo(, hlc. lo all probabihty this is the ef–

feé! of a bcginniog pUlId.•aioo, \Vhich atteouates this

fubflaoce, aod bre.•ks its contextu«. The li'l"or thus

difcharged by the white of an cgg thoroughll' di(fol"ts

tbe gum-reGos, and panicularly my"h.

you deGre to

diniJlve ml'rrh in this m.ooer, CUt a hard·boilcd egg in

halres; take out the l'olk; put the po\Vdered gum-r<Gn

ioto lhe cavity left by the yolk; joio the t\Vo h.lves of

Ihe white; fallen thtm logether IVirh a Ihread, and hang

Ihem up in a cellar. lo a fewdays time Ihe myrrh will

be di/l'olved by the moillure that i/l'ues from the white of

Ihe egg, and will drop ioto the ve(fel placed underoeath

lO receive il. 'n,is liquor is improperly called

.il

TnJrrh p" ddiquium.

AII

the propenies of the \Vhites of eggs, as IVell as Ihe

priociples obtained by aoalyGog them, are the fame with

thofe of the Iymphatic pan of the blood; fo that Ihere

is a great refemblance belweeo thefe I\VO f"bflances.

As 10. lhe yolk, it is plain from its aoal)'Gs, that oil is

!he p..dominlot principie thereof. If the yolk of an

'gg be mixed IYÍth water, Ihe oil wirh IVhieh ir is replete,

aod whid\ is by nature very minulcly di,'idcd, diffufes

eaGly through Ihe whole liquor, aod remaios fufpeod.

Iherein by means of ils vifcoGty. The liquor at the

fame time becomes milk-white Iikeao emulGoo, aod is in

faél a ItUe aoimal emulGoo.

lo order to oblaio !he oil of eggs by expreffioo with

Ihe mure eafe, care mull be taleo to ch"fe eggs thal are

fe..o Ot eighl days old; becaufe they are Iheo a little

lefs vifcous. Nevenhelefs their vifcoGIY is flill fo great,

tbat Ihey IVill nOI eaGly yield their .oil by expreffioo: aod

!hercforc, io order

atleoeale aod deflroy eotirdy Ihis

.ifcoGty, they mull be lorrefied before theyare pUt tO be

pretred.

The oil of eggs, like

a11

olher oily aoimal l)latter5,

fceros aealogous tOthe fal oils of vcgerables.

halh all

the properries thal charaé!erife thofe oils. Its colour is

yellow, aod it fmells aod lafles a little of the empyreuma,

occafiooed bY' lorrefyiog Ihe yolks.

is reodered fome–

what lefs difagrmble by beiog expofed lO Ihe dew for

Ihiny or fony oights, if

be takeo to flir il ofteo io

lbe mean lime.

To eooclude : all the priociples both io rhe yolk aod

the white of ao e¡;g are the fame as thofe fouod io

blood. Aelb, aod all other maHm Ihal are perfeélly

animal.

Ihe Excre1llcntJ o[

AnimaLr.

Dung analyftd. Inj1anced in human Excrmltnl¡.

IfTr Hotnberg'¡ PhcfphorUl.

aoy quao!ily you pleafe of human excremeot,

aod diOd il io a glafs alembie fel io the

hollltum mnritr.

You will obtain ao aqueous. clear, io(,pid liquor; wbich

viII otvtrthdef, have a difagreeable odour. Hnving

urged the di!lillalioo as far as is pollillJe wilh the heal of

VOL.

11. No.

31.

175

Ihis bath. uolute yonr ve(fds, and you wilf God at the

b~tlom

of the cueu lbit a dry maller, makiog auout ao

elghlh pan ooly of what you ptll illlo ir. Put this

r~fi!luum ioto a gl.lfs retort, aod diOil io a reverbel'atiog

furoace, wllh degrees of hcat. You will outdin a vol. –

tile fpirit, aod a volatile

f.lt

, with a fetid 01 · and

ch3tred matter will be left io the reton.

This fubrlaoce, eonfifling of mallers fubjea to putre–

faétioo, hath

coofl~otly

a fetid fmell, like that of all pu–

Ind marters; havlog beeo for fome lime coofioed in

IVarm, moifl place, which we koow promotes putrefac–

lion, and even quickly produces il. Yel the aoalyfi.

Ihereof proves Ihal it is oot putre6ed, orat leall not eo–

lirely fo : for all putrefied matte" cODraio a volalile al–

kali perfealy formed ao.! eXlric.ten; aod, as this prio–

ciple rifes with lefs beat thao th at of boiliog waler, il aJ'–

ways COllltS o,'er 6rH io diflillalioo. Now IVe have

fee~

thal. with the heat of boiliog water, it pans wilh 00-

thiog but an ioGpid phlegm, contaioiog 00 volatile alkali :

a fure

pro~f

thal the fecal maller

nOI compleldy pu–

trefied.

One of Ihe methods by IVhichMr Homberg eodeayour–

ed tO obtaio from excremeol a clear oil, IVithout any ball

fmell, w"' lO feparale irs eanhy aod grofs pans, by ni–

leriog it before he ditlilled il. "For Ihis purpofe he

diluted excremeol oewly difcharged with hOI water, u–

r.ng

a quarr of Waler 10 ao ouoce of feees. l1,eohe let Ihe

mixlure flaod to eool. aod Ihe grofs par\! falling 10 the

bottom, he poured off the water by inclioalioll. Thi.

liquor he nhered Ihrough browo papero aod evaporated

to a pelJicle over a geolle fire. There Ibol io il loog

cryflals of fou r, five, aod fix fides, whieh Mr Homberg

Ihioks mal' be called Ihe e/l'eorial falt of eXtremenl.

T hey refemble fah·petre, io fome meafure, aod deAl'

gratC io Ihe fire mueh like il; with Ihis diffmoee, !ha!

Iheir Aame is red, aoo Ihey buro Oowly

whereas the

Rame of falt-pelre is whileand very vi"id: probably, fays

Mr flomberg, becaufe there is too much of an oily

mll–

ler io the ooe, and lefs in Ihe olher.

" Mr Homberg diflilled tbis falt io a glafs mon wilb

deRrees of fire, aod al lafl wilh a very violeor one. Al

firfl Ihere carne over ao aqueous liquor, Ibarp aod aeid,

Vihich was follolVed by a browo fetid oil, Cmelliog very

Ilroog of empyreuma. This diflillatioo he attempted

four feveral times; aod eaeh limeIhe matler io Ihe retort

look fire, jufl wheo Ihe oil begao tO coole off."

The Calt which Mr Homberg oblaioed from excremeol

is very remarkable. Irs oitrous ehar'c'ler is by 00 mtan!

ambiguou!: ils deflagrating 00 live eoals cODvioced

Homberg of its being a me nitre.

BU!

ill cooflaotly

taking fire io the retort, as oft as diOilled, is a fure

proof thRt il is a oitrous f. h : for oitre ooly hath the

property of thus lakiog fire io

clof~

v<lids, .0J m,kio!:

olher combuflible mallers buro along with ir.

The procefs, by whieh Mr Ilomberc at

I.fl

obtaioed

from exeremeol a clear oil withoul aoy bad fmell. is

curiou!, aod \Vorthy of a·pbee htre, 00 aceouot or the

vieIV! and oecaGoos of rcAe8ioo which it mal' opeo.

.. Mr Homberg

havio~

uied io vaio. by diflilling ex–

erement a great many diAereol \Va)'s,

obtain rrom it

fueh ao oil as he waoted, refolveJ to employ fermeota-

1_Y

lioo,