“Get these tubes away from me!”

The New Marvel in Photography (1896)
Context: I was working with a Crookes tube covered by a shield of black cardboard. A piece of barium platino-cyanide paper lay on the bench there. I had been passing a current through the tube, and I noticed a peculiar black line across the paper. … The effect was one which could only be produced, in ordinary parlance, by the passage of light. No light could come from the tube, because the shield which covered it was impervious to any light known, even that of the electric arc. … I did not think; I investigated. I assumed that the effect must have come from the tube, since its character indicated that it could come from nowhere else. I tested it. In a few minutes there was no doubt about it. Rays were coming from the tube which had a luminescent effect upon the paper. I tried it successfully at greater and greater distances, even at two metres. It seemed at first a new kind of invisible light. It was clearly something new, something unrecorded.

Quote of Camille Pissarro, in a letter, Eragny, 25 February 1887, to his son Lucien; in Camille Pissarro - Letters to His Son Lucien ed. John Rewald, with assistance of Lucien Pissarro; from the unpublished French letters; transl. Lionel Abel; Pantheon Books Inc. New York, second edition, 1943, p. 100
1880's

About giving a cat a pill
The Unadulterated Cat (1989)

The Cause of Death
Albums, Revolutionary Vol. 2 (2003)

"A New Method of Obtaining Very Great Moving Powers at Small Cost" (1690)

Source: Fang

I'm a Stranger Here Myself (US), Notes From a Big Country (UK) (1998)

Source: 1916 -1920, Autobiography', 1918, p. 9

Source: The Angel Experiment