The elements of optics. In four books. ...
Emerson, William,1701-1782.
London : printed for J. Nourse,
1768.
With a half-title and a final advertisement leaf.
Preface signed: W. Emerson.
ESTC
Also reproduced on microfilm. Woodbridge, CT: Research Publications, Inc., 1986. The Eighteenth Century ; reel 7801, no.01.