DEC 
moires de Academie Royale des Sciences, an. m10, And 
eaumeé, in his Elements of Pharmec Y> dbleives, that 
the infufion of Peruvian bark, made without heat, contains 
more of its principles than the decoction; becaufe heat fe- 
parates and precipitates a confiderable quantity of refinous 
fubitance, of whch the bark confifis: and it is obferved in 
general, that deco@ion ought to be employed but when 
abfolutely neceflary, or when fame principles and the 
fame quantity of ae pce cannot be obtained by an 
infrfion withou pe 
a Clyfle er, is prcrcd by boiling one 
ounce of the dried leaves of mailow, and half an ounce of 
dasa chamomile, in a pint of water, and firaining the 
iquor. 
Decocrion of Lim, is = by aren four ounces of 
frefh elm bark, neareft the wood, bruifed, 
diftilled water, to two pints, ey ftrainin ng ie liquo 
decoétion, given in dofes of half a pound twice or — 
lay, is recommended in various chronical cutaneous pend 
tions; more efpecially when accompanied with purging me- 
dicines. 
Decocrion for a is made by boiling for a 
fhort {pace of time fouthern- 
memile, of each dried, one ounce by weight, and half an 
ounce by weight of dried baa in fix pints of diftilled 
water, and ftraining the liquo 
Decocrion of Hart hash is made by boiling, and c 
ftantly ftirring, two ounces by wei ight, of hart {horn burnt 
and prepared, and fix fans by weight of gum ara 
three pints of rae water, to oe pints, and then frain 
ing. co€tion, though a much Be a sorbent - 
thau the ies cretacea, is Gel more agreeable to moft 
ople. It is ufed as common drink in fevers, Rene 
ae 
pee aed of 
This is a yaad ae ® appition in defeda- 
It may be diluted at 
difcretion. 
Decocrion RE lou See SARSAPARILLA. 
DECOLLATION, Bexneapine, term frequently 
ufed in the Lek, decollation of St. John Baptift, which 
denotes a painting, wherein is reprefented the Baptift’s head, 
ruck off from his truuk ; or the feat held in honour of that 
artyr. 
DECO See Lea 
OMPOSITA Fotia. 
DECOMPOSIT » CHEMICAL, is nike refolution of 
a compound fubltance into its abla dante Sli are 
exhibited either feparate, ori on. For 
. obfervations on = limits and ea a nied decor: 
tion, fee AFFI 
secondo. in Natural Hiffory, is that decay o 
change, which moft of the flrata of the earth, however hard, 
are found to undergo when expofed to the viciffitudes of the 
atmofphere, and often in the parts where different fubfances 
come in conta& with each other; which laft kind of decom- 
paola has in fome initances of late been fuppofed to arife 
m a galvanic erabin excited by the fuperpofition of dif- 
ion kinds of ftrata upon each other. By dec 
as 
, ; gravel, or heterogeneous mixtures 
" of different Co feacen are eanents more Lubjet to decom- 
» fea~-wormwood, and rae have 
DEC 
sae than others which are lefs oe and hence 
bably has arifen the great depth o 
el 
ature of fome rocky ftrata 
is fuch, that they are never aie Ina ged or ftony aes 
upon the furface, or at their out-crop, but always her 
feen decompofed, and in a foft or frieble fate, aileigh the 
fame ftratum, when covered by others, prefents a hard rock, 
Coal, in hke manner, is always imperfeet at its out-crop, and 
often the richelt feams of this valuable fubftance prefent but 
meer i or blackening of the earth, at their out-burft 
to the 
. 
Decomposition is ufed by Boyle, Newton, and other 
Engltth authors, to fiznify aie com :pofition or junction of 
two or more bodies, which were previoufly compounded of 
other ake 
DECONUS, or Doconus, in Ancient Geography, a river 
f of Afiz, wk had its a in mount Caucafus, and dif. 
charged itfelf into chesPha 
DECORATION, ia Aiea, any thing that adorng 
and enriches a buildin ngs ¢ aoe triumphal arch, or the like, 
either Biba aaa 
orders of pelea ‘contribute greatly to the de. 
eisai: but then the feveral parts of thofe orders mutt 
their juft pro er charaClers, and ornaments 3 
othcrwife the fineft order will bring confufion ratner than 
richnefs, 
Decorations in churches are paintings, vafes, ae 
rerupeme! applied to the rete but Boe with fo 
fkill, as not to take of any thing from the form of de: are 
cites as is much practifed in Bn at the folemn 
fea 
Dy ECORATION ia more properly applied to the fcenes of 
theatres, which muft be frequentiy changed, contormably 
to the fubj c&t. 
The ancients had two kinds of decorations for their the. 
atres: the firft called verfatiles, having three fides, or faces, 
which were turned eo to the {pe€tators; the other, 
called duétiles, pile a new decoration by drawi ing or 
fliding another be 
The fatter ei is Sil ufed, _ Risa with much 
greater fuccefs than among the an 
raw a curtain yee ie they made a change mm the deco- 
ration; whereas, in age the change is made in a mo 
men. nd almoft a on being pcre 
DECORIANA, in Ancient ae, an epilcopal town. 
of Africa, in the Byzacene territory. 
DECORTICATION, the a@ of peeling, or unhufking 
roots, feeds, fruits, aaah &c. or of freeing them from 
their barks, re pee 8, 
DECORU 
r fhei 
7 icon in Aebeiire: This word 
oO 
which he illuftrates by various 
inftance s the temples 
sige . Jupiter the fea ena to the Heavens, the Sun, 
on, are to buile uncovered, becaufe the in. 
Ruenees and effects of en deities are perceived in the open 
air. To Minerva, Mars, and Hercules, temples of the Dog. 
ric order fhould be ere&ted;'and to Venus, Flora, Profer« 
pine, and the Nymphs of the Fountains, Corinthian tems 
ples, the gay and graceful manner of that order correfpond- 
ing with the character of the goddefles. ‘To Juno, Diana, 
and Bacchus, the Ionic order is to be appropriated, as pof- 
feffing a middle chara@er between the feverity of the Doric, 
ap the tendernefs of the Decor, 
o cuftom, is obferved, 
cae Gariect, the al are alfo made ee and 
egant. 
