See also:

• TELEGRAPH (Gr. Tike, far, and rypaq5eiv, to write)

TELEGRAPH (Gr. Tike, far, and rypaq5eiv, to write)  , the name given to an apparatus for the transmission of intelligence to a distance . Etymologically the word implies that the messages are written, but its earliest use was of appliances that depended on visual signals, such as the See also:

• SEMAPHORE
• SEMAPHORE (Gr. oiva, sign, and (Popa, carrying, from &ea)

semaphore or See also:

• OPTICAL

optical See also:

• TELEGRAPH (Gr. Tike, far, and rypaq5eiv, to write)

telegraph of See also:

• CLAUDE, JEAN (1619-1687)

Claude See also:

• CHAPPE, CLAUDE (1763–18o5)

Chappe . The word is still some-times employed in this sense, as of the See also:

• SHIP

ship's telegraph, by means of which orders are mechanically transmitted from the navigating See also:

• BRIDGE

bridge to the See also:

• ENGINE
• ENGINE (Lat. ingenium)

engine See also:

• ROOM

room, but when used without qualification it usually denotes telegraphic apparatus worked by See also:

• ELECTRICITY

electricity, whether the signals that See also:

• EXPRESS (through the French from the past participle of the Lat. exprimere, to press out, by transference used of representing objects in painting or sculpture, or of thoughts, &c. in words)

express the words of the See also:

• MESSAGE (a word occurring in slightly different forms in several languages, e.g. Fr. message, Span. mensaje, Ital. messagio; adapted from the Low Lat. missaticum, from mittere)

message are visual, auditory or written . See also:

• LAND

Land and Submarine Telegraphy will be considered in See also:

• PART

Part I., with a See also:

• SECTION
• SECTION (Lat. sectio, cutting, secare, to cut)

section on the commercial aspects . In Part II . Wireless Telegraphy is dealt with .