Notice of experiments regarding the visability of lights in rapid motion, made with a view to the improvement of lighthouses, and of some peculiarities in the impressions made by them on the eye /
Stevenson, Alan,1807-1865.
[Edinburgh? : s.n.,
1842?]
Caption title.
"From the Edinburgh new philosophical journal for April 1842".--below caption title.
Beacons
Physiological optics
Scotland Edinburgh.