Philosophical transactions of the Royal Society of London (1700)
Royal Society (Great Britain) · London : Royal Society of London · leaf 477
,) ew Difcoveries have been lately made, | pale (I think) had not been confider d by any before this pre- ent Age. I received (in. November 1699.) from Mr. Fohn Perks (Malter of an Hofpital at O/¢-Swynford in Worcefter-fbire, founded by Mr, Thomas Foley) a brief account of his Sguarzug the Portions… … Chordof ADB, the Quadrantal Arc of a Greater Circle, whos Center is C, ) be defcribed, as on a, Diameter, a Semi-circle xe rr J
Internet Archive · Natural History Museum Library, London · Public domain (published before 1931). Free to use for anything.
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