Remarks on an optical phenomenon observed at sunrise from the summit of Mt. Ætna /

by Blackadder, Henry Home
Published 1826

An attempt to account for the fact that the stars appear greater in number when viewed cursorily than when examined with attention /

Published 1826

Proposal for improving the phantasmagoria /

by Ritchie, William, 1790-1837
Published 1826

On the optical illusion of the conversion of cameos into intaglios, and of intaglios into cameos : with an account of other analogous phenomena.

Published 1826

Spectropia, or, Surprising spectral illusions : showing ghosts everywhere, and of any colour /

by Brown, J. H.
Published 1864

Spectropia, or, Surprising spectral illusions : showing ghosts everywhere, and of any colour /

by Brown, J. H.
Published 1864

The World's wonder supplement : the World's wonder pictures in colors.

Published 1902