# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/806933011:0618
# Permalink to this reading: https://leibnizlegible.com/page/806933011:0618?run=74
# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
# Folio - , page id 806933011:0618
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=806933011&page=618
# Source image: https://digitale-sammlungen.gwlb.de/content/806933011/jpgs/default/00000618.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 50 lines, status machine
# Lines: 50 recognised, mean confidence 0.81
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

The Tame may be ocherare eormed
chus:
Suppose on A R, ihe PerpMusa L LC Mt 
Drected at the Cnd R.
PR OBL F M 1
To Frect a Perpendicular on any assigne d Point os 
Siden B Le S Sapose est bsb 20b0 o
On each side oF the given PoinE c; CIT OH
 ihie Distance d e
F any
other greatet Mat d C) deseribe civo Arches
trom d and e, Mecem Cach orher in a, joyt
ac; Wrhrich Man be che Perpendicular reguire
e
Ce = b d; 212
convenient openins ol vour Com.
passes, onc Foor beins placed in R, draw che
Circle OCS; then Wwich che lame Distance, Pet
one Foor in S, and crols che Circle in C, 25 aIsc
TF e Y LMCt.
PR O B L EM H.
r, on, or near ihe F.
in R; then on che Centres C and R, draw (Wich
the lame Distance) cvo more Circles, currins
each other in P; LCay PR, Will be Perpendicu-
lar EO AR. For che Anple P R S, is a Rist
one, beins in he de
T0 Firect a Perpende
s a siven Line. As suppose on R.
iven PO1M. A3 2.
conseguentis L t lu de tefen ad
SR.
Po let Fal a Perpendieular on a siven L ine, srom
Open rour Compasses co any conrenient di
stance, and Pertine one PoOr in C, draw 
Circle PL. S. Lay a Ruler From S, thro C, it
will sind ehe Poine P in che Circumterence; ouL
erhence drai lR, and ris donc.
For ihe Angle P R S, being in a Semi-circle,
must be a RighE onc; (by 3Y. e 3 FuCl.) anc
R O BL F MI TII.
Sec one Foor ot che Compasses in a the LOI
siren, and with che ocher erols che siven Line
in che Poinrs b alid c: Then setrins che Compa-
ses in b and c, draW tW AkS, CCMHS CaCH O.
cher belon in o: Then lay 2 Rulex trom a 100,
The Demonsration depends on che geh i1
aud ris donc.
taette
et altddo