DIA 
oblique at the bafe. Anthers haat fearcely fo long as 
the filaments.—Gathered by Aublet, (one of whofe own 
{pecimens is now befcre us) in the ee forefts of Guiana, 
towards the river Sinemari. 
high, flowering in November, 
Branches round, tubercuilated, 
three or four inches long, pinnate; leaflets ufually five or 
n fhort thick round pearl partial ftalks, 
entire, veiny, oblique oped off at their 
bafe ; fmooth or nearly fo above, eh downy and ferrugi- 
nous beneath, efpecially. sae ribs and artial 
ftipulas, Aelcaised and f 
Vahl not to exit, nor ae ecimen. 
Panicles much fmaller than in the firf {pecies, and rather 
ore © Uivericated clothed with rnfy down, their branct.es 
mb Unexpanded flowers the fiae of muftard feed, 
Y amen ant. 
fhort, heart-fhaped. Germen eee early feffile in 
infk of an annular receptacle, without any peculiar gland. 
Style twiked. Fruit, according to Aublet, an oval, flightly 
compreffed, c capful e, or rather pod, containing one or two 
feeds a ged in reddith acid pulp. One of the feeds is often 
abortiv 
We ie to follow Vahl in uniting ioe two plants 
under one genus, n notwithitanding the fruit of the ormer 
In habit they are fufficiently 
sin, an the apparent gland, hitherto unnoticed, which 
we have found in D. indum se ru ied 7 apetal? If 
fo, it brings this {pecies very near to Codar. Ss. 
ee ACTERII, among i Accent See Diz- 
the words and meanin g of a fentence are invert 
difertior, difertis doGtior. 
DIALL 
ted, as do 
g fun, moo ? and ftar- 
dials, on any Bs en plane, or on the furface se any given 
body. 
The eeks and Latins call this art gnomonica, and fcia- 
therica, eae aE it diftinguifhes the hours by the fhadow o 
a gnomon. call it photo-fciatherica, beeaufe the 
s fhewn a the light of the fun, Laftly, 
others call it onelg ieee 
Dialling is wholly cides on the firft motion ie the 
heavenly Erte and chiefly the fun ; or rather ont 
nal rotation of the earth ; vo that the elements of fers, 
aad the {pherical aftronomy, fhould be maftered, bef 
alli — to the doétrine of dialing the aan or 
theory, we or as to the practice, or the operations 
the ae ditin from the denon ta. nothing is more 
 eafy and obvious 
The principles of dialling may be eafily deduced iil the 
method, already illu trated, of conltruGting dials by the 
globe. Or, th y be farther explained, by fuppofin 
; Y & 
he whole earth P ¢ p ( Plate IV. fig. 36.) to be tranfparent 
and hollow, like a {phere of glafs, and its equator to be 
divided into twenty-four equal parts by fo many meridian 
femicircles a, : 
ea of London: 
en ty-four baat: he will pafs from o 
ic angler an in an-hour. Then, if the pace had an spake 
“DIALLELOS, rage in Rhetoric, a figure, wherein’ 
Ctis 
DIA 
axis, as P & ps pal dae : the poles P and ‘ the fliae 
dow of the axis, which is in the fame plane with the fon, 
and with each meridian, oa fall upon every Laas 
meridian and hour, when the fun came to the p of the 
oppofite meridian, and would confequently flicw le time at 
London, and 
If this ff 
A 
half of the axis E P would be above the plane, and ‘the 
other half below it; and a thraight ‘lines were drawn from 
the centre of the plane to thofe ge where its circumfere 
ence is cut by the hour-circles of t here, thefe lines 
would be the haur- lines of the ee dial for Lon 
for the fhadow of the axis would fall on each particular hour- 
line of the dial, ae it fell pon the like hour-circle of the 
fphere. If 7 | 
A FCG 
for London, . whic « to be fet in the figure, 
hefe on a bee ool ail and ne lower half 
number o 
thofe points to which the h 
ha m ne centre ; and the phe 
fha n thefe lines at ‘ie  elpediie ieue. 
will Ail hold, if the plane be made to decline b 
number of degrees from the me 
weft ; provided the pueia be lefs than go degrees, or 
fe reclination be le an the co- ee of the place ; 
and the a Ue fhe ere will be the gnomon ; otherw ife, 
the axis vil have no elevation a the plane or the dial, 
and cannot be a gnomon. 
sit appears, that the plane of every dial Rag al 
the ns ne of fome great circle on bee earth, andt 
the earth’s axis; the vertex of a right gnomon the pats 
of the earth or vifible a ; and oe piane of the dial is 
jutt as far from this centre as from t a of this nae 
The earth itfelf, compared a its lites e from the fun 
confidered as a point ; and therefore, if a {mall fphere. of 
glafs be placed upon any part of the earth’s furface, fo that 
its axis be parallel to the axis of the earth, and the {phere 
Ines upon a - fuch planes within it, as above 
deleribed, it will thew the hours of the day as truly as if it 
were placed at the ae centre, and the thell of the earth 
were as tranfparent as glafs. Fergufon, ubi fupra. See 
Gwromonic Projection. 
The aie writers on dialling are, Vitruvius, Sebaftian 
Saas Pa ryander, Conrade Gefner, Andrew Gal cuee 
Fre aie, Joa Scho 
bee eae de Cau 
iy 
a ape eee method of os 
ertain points, determined by obfervation. 
Eberhardus Waiperus, in 1625, publithed his Disllice, 
wherein 
