As might well be supposed, this work with the "photic borer," as Clewe now called his instrument, was of absorbing interest.
"The Great Stone of Sardis" by Frank R. Stockton
Associated Words: photology, photologist, photophobia, catoptrics, dioptrics, photics, Ormuzd, luminary.
"Putnam's Word Book" by Louis A. Flemming
The after-effects of photic and mechanical stimulation are similar.
"Life Movements in Plants, Volume II, 1919" by Sir Jagadis Chunder Bose