It is, therefore, necessary to exercise a proper discrimination lest injustice be done to the various laborers in the same field of invention.

I trust it will not be deemed egotistical on my part if, while conscious of the unfeigned desire to concede to all who are attempting improvements in the art of telegraphy that which belongs to them, I should now and then recognize the familiar features of my own offspring and claim their paternity." [Illustration: QUANTITIES OF THE TYPE FOUND IN A PRINTING-OFFICE Calculation made by Morse to aid him in simplifying alphabet].