2 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-?
Radcliffe Tracts 60 (1)Edwards, John
An Account of the Cause and Cure of the Tremors particularly affecting Reflecting Telescopes more than Refracting Ones
Contained in the Extracts of Two Letters from him to Nevil Maskelyne, D.D. and Astronomer Royal. With Remarks on the Same Subject by the Astronomer Royal. N.p., n.d.
[1934-41]
[n.d.]