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Clifford, Clark McAdams

(Encyclopedia)Clifford, Clark McAdams, 1906–98, U.S. government official, b. Fort Scott, Kans. Admitted to the bar in 1928, he engaged in private practice before serving (1944–46) in the U.S. navy. As special a...

United Irishmen

(Encyclopedia)United Irishmen or United Irish Society, Irish political organization. It was founded at Belfast in 1791 by Theobald Wolfe Tone. Disgruntled by the use of English patronage to control Irish politics, ...

United States Naval Observatory

(Encyclopedia)United States Naval Observatory, a federal astronomical observatory, located in Washington, D. C. It evolved from the Navy's oldest scientific institution, the Depot of Charts and Instruments, founded...

pontoon

(Encyclopedia)pontoon, one of a number of floats used chiefly to support a bridge, to raise a sunken ship, or to float a hydroplane or a floating dock. Pontoons have been built of wood, of hides stretched over wick...

Paris, Declaration of

(Encyclopedia)Paris, Declaration of, 1856, agreement concerning the rules of maritime warfare, issued at the Congress of Paris. It was the first major attempt to codify the international law of the sea. Conflicting...

Parry, Sir William Edward

(Encyclopedia)Parry, Sir William Edward păˈrē [key], 1790–1855, British arctic explorer and rear admiral. He entered the navy at 13 and made his first voyage to the Arctic under Sir John Ross in 1818 in search...

force bill

(Encyclopedia)force bill, popular name for several laws in U.S. history, notably the act of Mar. 2, 1833, and the Reconstruction acts of May 31, 1870; Feb. 28, 1871; and Apr. 20, 1871. The first force bill, passed ...

Gallipoli campaign

(Encyclopedia)Gallipoli campaign, 1915, Allied expedition in World War I for the purpose of gaining control of the Dardanelles and Bosporus straits, capturing Constantinople, and opening a Black Sea supply route to...

echo sounder

(Encyclopedia)echo sounder, an older instrumentation system for indirectly determining ocean floor depth. Echo sounding is based on the principle that water is an excellent medium for the transmission of sound wave...

Hawkins, Sir John

(Encyclopedia)Hawkins or Hawkyns, Sir John, 1532–95, English admiral. In 1562–63 and in 1564–65 he led extremely profitable expeditions that captured slaves on the W African coast, shipped them across the Atl...