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Topic:
[HM] "portagraion"  a "mathematical instrument" circa 1745?
Replies:
4
Last Post:
Feb 9, 2006 4:17 AM




Re: [HM] "portagraion"  a "mathematical instrument" circa 1745?
Posted:
Feb 6, 2006 8:29 PM


It looks like an English (mis?)spelling of the French "portecrayon", or (drawing) pencil holder.
msm
James Landau wrote:
>The following question was posted on another list. I will forward all >replies posted to HM or sent directly to me. > >  James A. Landau > > > > >>Date: Sun, 5 Feb 2006 13:20:23 0500 >>From: "Joel S. Berson" <Berson@ATT.NET> >>Subject: Q: "portagraion"  a "mathematical instrument" circa 1745? >> >>What is a "portagraion", in the following quotation from 1745? I've >>done my best in OED2 and googling with various possible >>spellings. The mention just before of drawing pens suggests >>"pantograph", but that's not close to what I see. >> >> > > > >>Stephen Greenleaf, Mathematical InstrumentMaker...;Makes and mends >>all Sorts of Mathematical Instruments, as Theodolites, Spirit Levels, >>Semicircles, Circumferences, and Protractors, Horizontal and >>Equinoctal [sic] Sun Dials, Asimuth and Amplitude Compasses, >>Elliptical and Triangular Compasses, and all Sorts of common >>Compasses, drawing Pens and Portagraions...; with sundry other >>Articles too tedious to mention. >>
 ooooooooooooooooooooooooooooooooooo Michael S. Mahoney Department of History Princeton University mike@princeton.edu 303 Dickinson Hall Princeton, NJ 08544 phone 6092584157 fax 6092585326 WWW Home Page http://www.princeton.edu/~mike ooooooooooooooooooooooooooooooooooo



