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# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
# Folio - , page id 806933011:0502
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E
s
C b - ) =. 2. C b.) AFCLLMC Square
ot caca will be bb-) - eb b. ] = e cbb, Caat 1
E -I - D F KE, (bY 47 a L. F. VCL.) ANC EC
these Lqual Ouantiries adding he Squares ot L
and F C, cach ot wtich is = cc: LHeir Sum,
viz. D M D- I B D Z (1 c. L NI Z) vil
bc bb -] - cbb -  = = c cbb -) =cc, Wrtrich al(0
is equat Eo the Sum OF chele B L F -I - ( F C
1. c.  F C, wrtich Wvas = tO AD = X L
by the Construction) - B EK = a ecbb
.. Cc- = ecc- ) = e0 cc; thac is equaltO I) ZH
Wherctore since the Squares arc equal, thC
Nom il tom chose equal Sums bb  eb
1= = ccbb -  400, and = e cbb-  =c0 cdc
:c, rou cakre avas whac is comolo
bb -) ebb = ecc - e ecc: Wrhich WIII DC
tound ib be also, sinsly tatien, equal l Cach
other: Decause he PaxE caken arvas b b, ill bC
to the orher Pare taken aWvaY eCC:: ds the RC-
boch must be a5 cheir WVholes vere, 1. c. equal:
Whetcsere bB == ecc, and cbb = c ecc.
Whicl lacter Pquation resolved into Proporrion. Mesolabium.
als Wvill stand thus, 25 eb. ec : : ec. b; 6
25 A B. CK:: CK. M A. And il rou pche Lensch and Shornels ol Time, cither with
relolre the formet Equarion, ic will D as
That is CK. M A :: MA. BC.
FHaE C HE and MI A arc Tvo Mean PFOPOT-
tionals betrveen AB and BC. O. F. D.
cermed the Measure-Note, Or Pime-Note.
MEASORES. Ichoushr ic vould bea vers
Acceptable Thins co che Reader, 10 sel s hc
A cno LIC
E0 cach other.
BOck, 11Z. = ee
ec. b. : b. c.
rhichis thus:
etangle, drains che Diagonal eo find the Poine
X, aud producins B A and B C BOch Ways 10.
Wards ML and IE; For chen sX a Rulex on the
Centre L, and chere turn ic Forward and back
ard, rill vou find by the Compases MI X and
ZK are equal; and THen A M and C K are
the Lines ToueHt.
Another Mechod For Which, Kutocius alo men-
tions, Which scems more Practical; which is.
Fomiake a Semi-cirele on A C the Diagonal of
cheRectanole, chenthe Morable Ruleris placed
Forwards and backards rill L M (by the Com
Passes) be foune equal 10 N R, and chac ilt
sire che Poines M and IE, and consequenely che
Lines A M and C R required.
TTow tosnd Pwo Mean Proporrionals by help
of the Cissoid oE Diocles, and by TWo Parabo-
hb -] = cc, there ill remain la s, (wtich WaS Wenechmus his WaY) see Scur-
mius Mathesis Enucleata, B0Ok2. PrOP. 2T. Con
sect. C5 Scholium. Des Cartes doch the Tame
Thins by help oF One Parabola ontr, sec nis
Geometry P. 9r. and as manr as von pleale Dy
var, vhich sec in p. 67, 68 oF his Oeometry.
Much moie ot chis Hacure zoa have in sluscus
ROOES Or Lines M X and XK must be equal
mainder eb b. is ro the Remainder eecc; and hele of a Curre Line senerated atter a peculiar
MEASCTRE, in Musick, is a Ouaneits OF
respect to Nacural Sounds, pronounced by ele
Voice; ot Arciticial, drann out ot Musical In-
Wrhich is in plain NVords che Proposition, viz.  struments: Which, Mcasure is adjusted in Va-
rieer ot NTores, by a coristane Morion of che
Lat et LOO, adun et up, successirely and
On erhich Demonstrarion is Founded rhe Me-) equalles dirided; (0 that cveri Donn and Dp is
chanical WVar OF Futocius, Lib. 2. De Sph. andi called a Time or Measure, Wherebr the Lergrh
Cylind. For findins Zuo Mean Proporcortats, ot a Semi breve is mealured, which is cheretore
Vieur an AccOunE OL TC AncienE and Pretet
Measures oF several PATES OL the WVorid:
Which cheretore L’hare here siren him a5 
occationals colceled inem trom ihe Best Au.
CHOTS.
so c Giren Lines AB and BC in 2
li e, ad betore, and compleae ihe te
CaglI
ed t
10
1 53