Page:Popular Science Monthly Volume 40.djvu/197

Rh one hundred and fifty-six thousand ems of minion. As the machine was worked one hundred and nineteen hours, this shows an average speed of only thirteen hundred ems per hour. At first sight this might seem disappointing. There were reasons why it was not so. The three operators were compositors, and had had only three or four weeks' practice on the Typograph. Owing



to faults of the motor used to run the machine, it had to be worked by hand-power one quarter of the time. The three operators not only ran the machine, but they read the proofs, made the corrections, set the headings, and made up the "forms" ready for the press. Finally, the machine lost several hours' work through a fault in a casting. Taken as a whole, it seems to me the test was a conclusive proof of the practical success of the Typograph.