heliograph

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Many of the instruments used in early operations of the United States Army Signal Corps were adaptations of equipment used by the Plains Indians, particularly that of the heliograph.

From SAT Tests

In the flash of heliograph signals in the North Sea haze and the speaking of great naval guns, the world has lately read a certain statement about the British Empire.

From Time Magazine Archive

Then, you know, we could have carried on our little confab by flashes of the heliograph.

From The Boy Scouts Under Fire in Mexico by Payton, Lieut. Howard

From an old MS. it appears that as early as 1068 the heliograph was in common use, special towers, with mirrors properly arranged, being built for the purpose of signalling.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" by Various

Moving further to the east, Milton observed, in the plains beyond the distant end of the valley, the two squadrons under Colonel Gough, but failed in an attempt to attract their attention by heliograph.

From History of the War in South Africa 1899-1902 v. 1 (of 4) Compiled by Direction of His Majesty's Government by Great Britain. War Office