DIA 
fun’s mean right aceon alfo 1 ob t a 
tion — whic ii apparent cas peas 10! 
be applic 
; wich “ponfideration 
t of complete accuracy. 
an motions produced by the wheels at pioions in this 
omplex motion-work, being all very flow, dedu& very 
little from the maintaining power, fo little, indeed, as to be 
abfolutely imperceptible in practice, particularly when a 
good detached efcapement is ufed. e of fuch dial. 
work in a chronometer, that is regulated a tranfit inftru- 
e evident to every perfon {killed in aftronomy, 
aw branch of furveying whic 
i which are 
e 
greateft clongations of the pole ftar. e {mall dials wil 
tell, at all periods of day or night, throw hout the years 
what heaverly bodies, the right afcenfions of which a 
previoufly known, are on or near the meridian of the pice 
for which the chronometer has its time adjufte 
We might enlarge this article by the saa of various 
other contrivances, introduced by ingenious workmen into 
i 
at Caeab ce felling a valuable clock 
which he had cornea and made, when the Englifh caufed 
that city to capitulate, and the attizan was brought over 
to England, where he remains in effeét a prifoner; being 
thus feparated from his family, and having no means of 
fubfiftence but his fkill in mechanics, he invented the con- 
trivance we are going to ae a ee ketch of, and the 
plan of which is given in of Plate XXXII. AB 
1s a circle of brafs divided ae ade hours, and fub-divided 
into five minute {paces, which circle is fupported, as feen in 
the figu n te ; Cand D 
ofite bi 
ate er it comes to reft, will come to a 
y hour and icine of the da 
ion 
c 
et 
rim 
on 
as) 
— 
t 
ten ana to always 
fent r and minu oe ny more than the 
cele aed can be difcovered is ocular examination. 
You. XI. 
ric, and the co 
DIA 
The fact, ata is, that a watch is contained in the 
box C, which makes a wheel revolve in twelve hours, that 
is loaded with a weight heavy enough to alter the common 
centre of gravity of the loads C and D, as ae ne wheel 
revolves, thereby throwing the centre of ¢ to the 
right and left of the axis of oto dee ee ca — 
the ends of the bar, with its loads, to preponderate alt 
nately, 7 confequently, to revolve gradually from XI 
round t again, as the watch governs the rate. It 
will be pe however, that the velocity of the bar will not 
be uniform in every part of its revolution, becaufe the co- 
genious reme 
inequalities of motion laa the equally divided {paces of 
the circle, conftitutes the fecret on which 
the ee 
pe an circumftances sr the ma aeae er. 
We underftand, she their royal highneffes the dukes of York, 
and — have doe afed each one of thefe horofcopes, 
they be mproperly called, as has 
Campbells ; nr Malti. Rondel and Co. of Ludgate-hill, 
vend this ingenious article for 
nee who puts no higher price cn 
it than about feven a ineas, 
ECT, Asazacxros, from oo to di ifeourfes 
the peculiar language of fome province, 
ae he rmed by corruption of the sere, or ee lan- 
Fiance could {peak five different languages in 7 verfe, 
i. e. five dia edhe; viz. the Attic, eae arene e Do- 
on dialet of the Greek 
fe 
perfect ns 
cacy which the Athenians afterwards acquire a. It wa 
ufed by Herodetus and Hippocrates. The Doric was firft in 
ufe among the Spartans, and the people of Argos ; it pafl- 
ed afterwards into Epirus, Libya, Sicily, Rhodes, and 
Archimedes and Theocritus, both of them Syra- 
cian colonies. ‘Sappho and Alczus w e&t. 
We find alfo a mixture of it in - writings of "Pheocritue, 
Pindar, Homer, and man 
The Bolognefe, ee a Tufeas, &c. are the dia- 
le@s of the Italian; the Gaicon, and Picard, are diale&ts 
of the Frenc 
In Great Britain, almoft every county has a diale&t of 
its own, all differing confiderably in aati accents 
and tone, though the language be the e. 
The method which the Gileadites 
Epbraimites, by the pronunciation ie i ‘Aboleth, vith is 
r famech, is well eae see 8, X11. 
DIALECTICA, ue paren the art of 
pas and aveug uy 
The word comes fro Greck dwarzyopo4, L difcourfe, 
formed of Doe, cas ye ‘ay. 
Zeno Eleates is faid to as been the firk who difcovered 
the natural feries of Princip! es and conclufions obferved in 
reafoning, and formed an art cherecf, in form of a dialogue ; 
4 A which, 
