@article{535791,
      recid = {535791},
      author = {Mudge, John,},
      title = {Directions for making the best composition for the metals  of reflecting telescopes. 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. an 13. 1777.  [electronic resource] :},
      publisher = {printed by W. Bowyer and J. Nichols,},
      address = {London :},
      pages = {56p.,plate ;},
      year = {1777},
      note = {Reproduction of original from British Library.},
      url = {http://library.usi.edu/record/535791},
}