Spectropia ; or, Surprising spectral illusions. Showing ghosts everywhere, and of any colour (1865)
Brown, J. H · London, Griffith and Farran · leaf 11
Fig. 1. … Fig. 2. Fig. 3. have the power of appreciating the image there formed, and convoy it up through the ultimate parts of the retina (Fig. 2), thence along the optic nerve fibres to the brain. We are inclined to regard the extremities of the rods and cones as the true seat of perception, in consequence…
Ghosts · Optical illusions
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