John Hadley, "The Description of a New Instrument for Taking Angles" AND Pierre Louis Maupertuis, "De Figuris Quas Fluida Rotata Induere Possunt" AND Cromwell Mortimer, "An Account of Mr. James Christopher Le Blon's Principles of Printing, in Imitation of Painting." AND numerous others in the Philosophical Transactions.

The following papers are all found in one volume (facsimile reprint) of the Philosophical Transactions, London (printed in New York by Krauss Reprint and Johnson Reprint corporations, 1963. Reprinted with permission of the Royal Society of London, the only authorized facsimile edition. Volume 37, 1731-1732, 450pp with folding plates. Bound in a sturdy cloth. Ex-library with the usual markings: paper spine label at spine bottom, rubber stamps n text block faces, bookplate. The text is very clean and fresh. Uncommon to find these works as hardbound copies! John Hadley, "The Description of a New Instrument for Taking Angles" pp 147-156 (with a folding plate). This is a very significant pre-sextant reflecting quadrant, a very important development in the history of navigation. "This reflecting octant (or quadrant) became the direct precursor to the modern marine sextant, revolutionizing navigation and latitude determination at sea."--Linda Hall Science Library Pierre Louis Maupertuis, "De Figuris Quas Fluida Rotata Induere Possunt" pp 240-256. Mathematical physics paper/on the figure of the Earth. Cromwell Mortimer, "An Account of Mr. James Christopher Le Blon's Principles of Printing, in Imitation of Painting." pp 101-106. This is a very early work on color printing and the application of multiple plates carrying varying colors to be used to reproduce works of art that were not (as usual) colored by hand. Henry Beighton, "A Description of the Water-Works at London-Bridge" pp 5-12. And numerous others. …