1 matching record(s)
Radcliffe Tracts 49 (3)Edwards, John
Directions for making the best composition for the Metals of Reflecting Telescopes; and the Method of Casting, Grinding, Polishing, and giving them the true Parabolic Figure
Published by Order of the Commissioners of Longitude. London, n.d. [after 1790].
[1934-41]
179-?