It is known that every beam of light is accompanied by a beam of chemical agency, totally undiscoverable to the senses of light or warmth, but admitting of separation from the luminous and warm rays; and producing photogenic effects.
"Autobiography of Sir George Biddell Airy"
George Biddell Airy
Joe could remember nothing in his life as assured and as photogenic.
"Joe Burke's Last Stand"
John Moncure Wetterau
Use to man of photogenic organisms.
"The Nature of Animal Light"
E. Newton Harvey