DIA 
prams, exprefs all the ufual intervals in mufic; and on this 
ae : is that the diapafon is founded. 
a particular kind of diapafon for trumpets, ferv- 
ing asa Aanderd, or meafure, for the different magnitudes 
they muft have to perform the four parts of mufic. There 
is another for fackbuts, and ferpents, fhewing how far they 
are to be maa or pone) to rife or fall from one 
tone or interval to 
The bell- uae ha chew fe a diapafon, or f{cale, ferv- 
ing to regulate the fize, thicknefs, weight, &c. of their 
bells. 
PASON- nei a kind of compound concord ; whereof 
there are two { the greater, or the interval of a a 
pun ee ate is 3 ths, or VIII + VI = 1063 © 
2m s andthe /e/, or the interval of a minor 
je. whofe ratio is nethiés OF VUIT + 6th = 10272 
+ 20 f+ See Con 
ia aes a Esapound confonance, i in a triple 
ratio of g to 3. 
‘The soe baron apne is a fymphony made when the 
voice proceeds firft to the twelfth tone. The 
word is properly a a ae Greek mufic: we fhould now 
callitatwelfth. It iy he interval of a — twelfth, 4, or 
VIlI+ V= 9702+ 19 f + See Concorp.) 
easlageee Capel : thought this interval to be equal to 9 major 
and a 
r femi-tone, but which exceed it by 2 
fehifmas (2 2). 
Diapason-diatefaron, a compound conco 
The diapafon-diateffaron is a fymphony wherein the voice 
proceeds from the firft tone to the elevent 1e mo- 
derns would rather call an eleventh. It is the interval of a 
minor eleventh, Rie or VIII a 4th = 8665 + 
75m, (SeeC rp) M. Capella ftates this interval to 
be equal to 8 majo ners anda menor femi-tone, but which 
— it by 2 
ee ne expreffes the interval of a major pails 
aths, or o VIII + IlI= 8095 + 16f + 70m. See Con 
co 
RD. 
D: eer tal is the interval of a minor tenth, 
waths, or VIII + 3d = 773 2 + Ag f+ 67 m. See 
ORD. 
DIA PEDESIS, diemndnoss, in ATedicine,a term employed 
by Galen and his followe ers, to denote a fourth mode. by which 
hemoptyfis may be produced, (in addition to thofe men- 
tioned under the term Drasrosis,) namely, when the c 
tained fluids tranfude, as it the Galesken 
ha 
blood is more diffolved, fo - to pafs through the pores of 
ough a fieve. Quickfilver, fays Van 
n, gives no unapt inftance of this diapedefis, when it is 
fquccaed through leather to purify it; for it tranfudes in 
ute drops, the leather remaining entire. But, he juftly 
adds, although this may feem not altogether impoffible, yet 
it is hard to conceive that the red blood, which is the mo 
denfe of the human fluids, fhould inower force its way 
through the pores of the membranes of the veflels, than oa 
from the arteries into ne veins. ee Galen Meth. Med. 
lib. v. cap. 2 Van Swieten Comment. § 1199. 
DIAPENSIA, in Botany, (according to profeffor Mar. 
tyn, from SiamwSew, to mourn, or grieve deeply, probably from 
its dreary place of gtowth. But Ambrofinus derives it from 
fenfe it cer- 
tainly was applied by the botamits of his time to the Sanz 
rat beg — are sas ae of five ie Linnzus, 
fi ame, as Its in the a Lapponica, 
ing t 
fitae pied, qdone it for a new Lapland, peat in allu- 
DIA 
een as it fhould feem, to its five-cleft flower and five 
ftamens.) Linn. Gen. 70. b. 104. eee Sp. ae 
sae eer off. 135. Clafs and order, Pentan 
j 2 Won 
Convolvulis fin Line i 
ggnia. Nat. Ord. Precia, Linn. 
Erica, Salifb. 
eu. Ch. Cal. Perianth of eight leaves; the five inner- 
moft ranged in a circle; the reft imbricated upon them 
all equal, ovate, obtufe, ercét, permanent. Cor. of one 
petal, falver-fhaped ; tube cylindrical, ae the se 
of the calyx; limb in five obtufe horizontal fegmen 
Stam. Filaments five, linear, flattened, erect, fhort, inered 
into the top of the tube, between the fegments of the li 
anthers fimple, according to Linnzus, - more juftly pe 
fented in the Paradifus ea as of two diftinG, fef- 
if. Ge 
file, -elliptic lobes. Pi en fuperior, roundifh ; ftyle 
cylindrical, ere€t, its top ona level with - nthers ; ttigma 
blunt, with flight notches. Peric. Capfu'e ovate, 
with three ceils and three valves, _ sation: contrary to 
the valves. Seeds numerous, roun 
“ff. Ch. Corolla falver-fhaped, fave-cleft. Calyx of five 
leaves, encompaffed by three others. Stamens page the 
tube of the corolla. Capfule of three cells. 1. D. /appo- 
nica. Leaves tongue-fhaped, recurved, {mooth. Acthers 
without {purs. 
Sp. Pl. 202. Ord. 
Sims in Curt. 
abundantly on the Alps of Lapland. We have it alfo from 
the coaft of Labradore. Ocderh from Norway. I 
loflomed in the gar of the right honourable C. Gre- 
ville, at Padd:ngton, in February, 1808, for the firft time 
believe in Engla The b g ftems form little 
denfe tufts, clothed with ee d leaves, which fpread in 
every direction, and are tongue-fhaped, recurved, entire, 
{mooth, eded: Cech channelled above; the lower ones 
permanent, though faded and almoft black. Flowers foli- 
tary, on fimple terminal ftalks. Corolla of a brilliant white, 
with yellow anthers. 2. D. barbulata. ‘* Leaves fome- 
hat wedge-fhaped, downy beneath. ers fpurred at» 
the bafe.” Sat Parad. (Pec adien barbulate ; Mi- 
chats Fi. 1. Amer. v. 1. 152. t. 17.) ative of 
f Noth Carclina. Dr. Sims and Mr. Salif- 
a have Goth ery the generic affinity of this plant 
to the former. ve feen no fpecimens of it. 
E, it in Mf, the name oF eb the Greeks to 
the interval which we call the 5t th, or 2dc 
of perfection. (See F IFTH. The w 
through, and were, five as, informing this interval diatonically, 
it contitts of five ree 
DiapeEnre is alte aa, in Pharmacy, for a compound of 
five feveral drugs, or ingredients, ts 
Diarenre, among Farriers, a drink made for horfes of 
grentian, arpa birthworth, barberries, myrrh, and ivory- 
fhavings, o a like quantity, which are to Me pounded 
feparately, ad finally fearced : this powder, to the quantity 
f 
or want of either, with ftrong 
eer, and given i in fevers, gs cough, gla cree furfeits, 
inflammations, yellows, & s faid to purify the blood 
fan all foulneffes, as al as +0 en the see towing of 
the gall, a o 
IAPER 31 n to a particular fpecies of 
cloth, ufed chiefly ne table linen. It is known by the 
Picach by the name of joie fourré, and is ornamented with 
the moft extenfive figures of any kind of tweeled cloth, ex- 
cepting damafk. The mounting of a loom for working 
diaper is, in principle, much the fame as a draw-loom, but 
the figures being lefs extentive, the mounting is more 7 
a. and . 
