Dictionarium polygraphicum: or, The whole body of arts regularly digested ... adorned with proper sculptures, curiously engraven on more than fifty copper plates .. (1735)
Barrow, John, teacher of mathematics · London, C. Hitch and C. Davis [etc.] · leaf 259
PER When you have donethis, fet one foot of the compafles in D,and with the other take the interval E, and defcribe the archE F, and doing the like on the other lide, the oval will beformed. 14. For a rounder oval^ draw a Tingle line, and from A, as acentre, defcribe a circle, the interfeition of…
Art · Industrial arts
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