Directions for making the best composition for the metals of reflecting telescopes
Subtitle: Together with a description of the process for grinding, polishing, and giving the great speculum the true parabolic curve. By Mr. John Mudge. Read at the Royal Society, Feb 27. March 6. and 13. 1777.
Series: Eighteenth century -- reel 6256, no. 08.
Publisher: printed by W. Bowyer and J. Nichols
Published: 1777
Place of publication: London
Language: eng
Format: Microform
Number of pages: 56
Notes: Microfilm. Woodbridge, CT Research Publications, Inc., 1986. 1 reel ; 35mm. (The Eighteenth Century ; reel 6256, no. 08).