FUS 
fcoria, and vitrifies$ the metalline par 
under the appearance of a black regulus. ‘To pro 
fufien and feparation, they mix eee or ftones, or 
or old feorix, along wich the ore; the inflammable prin- 
ciple in which, by help of fire, fates them perfectly, fets 
xc heterogencous part at liberty, and raifes it to the top. 
refiding at bottom, 
a 
rener ral reafon of fufion is pretty eafily affigned. The 
ee a or 5 fliiy of a body arifes from the force v herewith 
its particles cohere, nd the cotion of all bodies is as 
the qrashty of contaét in the component particles. 
ow the corpuicles of fire, ene with rapidity in 
the pores of the metal, agitate, and, by degrees, lof 
divide and diminifh their contaét; till at neh there is 
not enough to hinder their rolling over each tlic and 
giving w et upon the leaft impulfe. 
he dilatation obfervable in all fufion, is a proof tha 
the ae of the bodies are feparated, aud fet at a diltance 
from each other ; and, conicquently, their contacts and co- 
hefions oo 
n effect, arcfaction i dilatation are the neceffary con- 
fequences of ay nd he 
From the eae a cohefion proceeds that variety we 
obferve in the fulion dies ; for fuch as have lealt contact 
of parts, foonedt ae way to the fire; and f fome will sa 
away by the warmth of a vapour only: thus air and m 
cury are fo fufible, that the heat of the pr ae is aways 
o keep them fluid; when others, which have a 
fe) rece 
nite, minerals flower, a ers feat of ae 
the lak, oid _ the contact of parts is — as in lead 
eadily melt ; ia thofe which a come 
ne filver, are not to be aac but by 
If now the force of cohefion were proportional to the 
quantity of matter, or to the weight of bodies, we might 
from ftatics account for all the variety that occurs in fufion : 
in O1 el there fhall be a much atl contaét tha 
another, though the gravity be equal, or even greater in the 
latter, therefore the force of the ne cannot be efki- 
mated by gravity; for lead, oe more ponderous than 
a er metals exce old, yet ia the fire is more eafil 
melted than almoit any other ; fo that j it neceffarily follows, 
that in this metal there mull be a lefs cohefion, or contact 
of parts, how _ foever it may exceed others in the 
quantity of its m 
Bodies after Fabon return again into a folid mafs, upen 
removing them from the fire; becaufe their particles 
hereupon approach nearer to one a by their attractive 
orce, and are compelled to 
Such as confift of bomen aegct and unaltcrable parts, as 
‘wax, gums, and the purer metals, recover their ancient 
form: for when the fame texture of parts remains in the 
Mees body, . muft o — re-aflume the fame ap- 
arance, when 
oe aie “eile fome are 
he sa or ee and ot aa are changed as 
e forced to appear in another 
r their original phafes, unlefs 
every, "particle could are itfelt | in that very fituation it 
FUS 
. one. waiily in frepiiosehiees bodies. 
The rence, therefore, obferved 
= e even in. homogeneous 
odies after liquefaction, is no w accounted 
for but fro t i 1 
vat have e been cial 
this opinion, are thofe of a fivord 
din its feabbard, ando 
Ses whilft the sae and bag remained unhurt. But 
t appears, by a variety of e experiments and obfervations 
collected ir the pr es of electricity 
fate, that this kind of fufion is ome, with heat and 
ignition, as in the cafe of common fufion. Phil. Tranf. 
vol. li, ay i. art. 30 an 
FUS n Geography, a town of 
ifland of Nipton ; 6 miles 8.8.E. of Meaco. 
FUST, in rhitture the fhaft of a column; or 
art comprehen between th > 
paar e bafe and ae capital ; 5 called ’ 
The wordis French, and literally fignifies a cafe. 
The fultis that cylindrical part, which makes, as it were 
the pony or trunk of the column, exclufive of the head and 
00 
YUSTI IAN, in Commerce, 
feems, ag it were, quilted, or pees on 
anege derives the word from cae which i in the 
corrupt Latin writers is ufed in "the fame fenfe, an 
poled 
w. 
Japan, in the 
nh 
a kind of weirs ftuff, which - 
ide. 
he cotton grows. Bochart derives it from Suftat, 
which, in Arabic, eae the ancient city o emphis, 
where cotton is ced in great abu ce. ht ful. 
a n Rig 
tians fhauld be ae ace ther of cotton thread, 
woof and warp. 
Fustian, in the Manufadure of Cloth, j 
coarfe thick twilled cotto hh and is gener aly dyed o i ‘pee 
leaden, or other dark co ae r previoufly t 
Belides ae commion atin whl ‘ known wi the 
both 
name ot 
n ftuffs k 
the names 
the other 
known co 
corduroy, velverctt, velveteen, thickfett, and 
thick fabrics ufed for men’s w earing appare 
moneft kind of fuftianis mere ely a twi 
times five lea 
narrow, g 
is.cut from the loon in half pieces or ends as they are ufually 
called, and after undergoing fubfequent operations of 
The - 
yeing, drefling, -and folding is ready for the market, 
end or half piece is Aap fro yards. 
The draught and cor of common sili is’ vor "y 
sui a seat are He or unbroken twe 
or five leaves. e are {pecimens of a few 
fele&ted from thofe mo eet in ean kins 
The number of leaves of heddles are dire by the 
lines acrofs t r, and the cording by the es at the 
left hand corners, thofe which raife every leaf being diftir. . 
guifhed by the cyphers, and thofe which fink them left blank, 
as more opecnly explained in the article Dratcur ae) 
5° 
Cordin 
