Note 2 — Chapter II · THE AUTOMATIST
Reading edition
I carried out a long series of experiments with the idea of developing an automatic recorder operating on the lines of the familiar tape machine, and experimented at length both in London and in Paris, where my work was done in connection with the student Du Plessis, who was one of the heroes who gave his life at Verdun. Latterly we abandoned the idea of an actual print-registering machine for a device designed to register impulses on a wax cylinder, something on the lines of a phonograph. Some results were obtained, but the machine was not successful or reliable.