APPENDIX A

APPENDIX B

INDEX




ILLUSTRATIONS


SAMUEL FINLEY BREESE MORSE

MORSE'S FIRST TELEGRAPH INSTRUMENT

CYRUS W. FIELD

WILLIAM THOMSON (LORD KELVIN)

THE "GREAT EASTERN" LAYING THE ATLANTIC CABLE, 1866

ALEXANDER GRAHAM BELL

THOMAS A. WATSON

PROFESSOR BELL'S VIBRATING REED

PROFESSOR BELL'S FIRST TELEPHONE