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Hutton, James

(Encyclopedia)Hutton, James, 1726–97, Scottish geologist, chemist, and naturalist. He was initially attracted to chemistry; he entered the legal profession at the Univ. of Edinburgh; turned to medicine, as it clo...

Playfair, John

(Encyclopedia)Playfair, John, 1748–1819, Scottish mathematician, physicist, and geologist. He was educated at St. Andrews and Edinburgh and taught first mathematics and then physics and astronomy at the latter un...

geomorphology

(Encyclopedia)geomorphology, study of the origin and evolution of the earth's landforms, both on the continents and within the ocean basins. It is concerned with the internal geologic processes of the earth's crust...

Lyell, Sir Charles

(Encyclopedia)Lyell, Sir Charles līˈəl [key], 1797–1875, British geologist. After studying and briefly practicing law, he spent most of his life in travel and in popularizing scientific ideas. He championed an...

uniformitarianism

(Encyclopedia)uniformitarianism, in geology, doctrine holding that changes in the earth's surface that occurred in past geologic time are referable to the same causes as changes now being produced upon the earth's ...

Mendip Hills

(Encyclopedia)Mendip Hills, range of hills, c.25 mi (40 km) long, across N Somerset, SW England, extending SE from the vicinity of Hutton to the Frome valley. Primarily limestone, the hills have numerous caves (Woo...

catastrophism

(Encyclopedia)catastrophism kətăsˈtrəfĭzəm [key], in geology, the doctrine that at intervals in the earth's history all living things have been destroyed by cataclysms (e.g., floods or earthquakes) and replac...

Lind, James

(Encyclopedia)Lind, James, 1716–94, English naval surgeon. Considered the founder of naval hygiene in England, Lind observed on a ten-week cruise (1746) that 80 seamen of 350 came down with scurvy. In his Treatis...

Lenox, James

(Encyclopedia)Lenox, James lĕnˈəks [key], 1800–1880, American bibliophile and philanthropist, b. New York City. Lenox was a founder of the Presbyterian Hospital, New York City. He amassed a fine collection of ...

Larkin, James

(Encyclopedia)Larkin, James, 1876–1947, Irish labor leader. The Irish Transport and General Workers' Union, which he organized and of which he was secretary, had as its goal the combining of all Irish industrial ...