Topic comparison
3 encyclopedia records currently available for this topic.
1902–1905
The New International Encyclopaedia · First edition
MVP seed record for New International telegraph coverage. OCR sources are included early so validation can track messy records separately from clean text.
1910–1911
Encyclopaedia Britannica · 11th edition
TELEGRAPH (Gr. Tr/Xe, far, and ypafaiv, 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 semaphore or optical telegraph of Claude Chappe. The word is still sometimes employed in this sense, as of the ship's telegraph, by means of which orders are mechanically transmitted from the navigating bridge to the engine room, but when …
1920
The Encyclopedia Americana · 1920 edition
MVP seed record for the Americana 1920 telegraph article. The record is meant to exercise topic grouping, source filters, and scan provenance links.