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land use

(Encyclopedia)land use, exploitation of land for agricultural, industrial, residential, recreational, or other purposes. Because the United States historically has a laissez-faire attitude toward land use, the land...

Lange, David Russell

(Encyclopedia)Lange, David Russell lăng [key], 1942–2005, New Zealand politician. After receiving his law degree (LL.M., 1970) he fought for the rights of the underprivileged in Auckland, and was elected to the ...

Langer, Susanne Knauth

(Encyclopedia)Langer, Susanne Knauth nouth lăngˈər [key], 1895–1986, American philosopher, b. New York City, grad. Radcliffe (B.A., 1920; Ph.D., 1926). After holding various teaching posts, she was a lecturer ...

Laos

(Encyclopedia)CE5 Laos läˈōs [key], officially Lao People's Democratic Republic, republic (2015 est. pop. 6,664,000), 91,428 sq mi (236,800 sq km), SE Asia. A landlocked nation, Laos is bordered by China on t...

La Paz, city, Bolivia

(Encyclopedia)La Paz lä päs [key], city (1992 pop. 713,378), W Bolivia, administrative capital (since 1898) and largest city of Bolivia. The constitutional capital is Sucre. La Paz, the highest capital in the wor...

larkspur, in botany

(Encyclopedia)larkspur, any north temperate, Old World annual of the genus Consolida of the buttercup family. Consolida species were formerly classified in the genus Delphinium, which includes similar annual, bienn...

layering

(Encyclopedia)layering, horticultural practice of propagating a plant by rooting a branch before severing it from the mother plant. Typically the branch is bent and a section that has been slit or broken on the und...

lead, chemical element

(Encyclopedia)lead, metallic chemical element; symbol Pb [Lat. plumbum]; at. no. 82; at. wt. 207.2; m.p. 327.502℃; b.p. about 1,740℃; sp. gr. 11.35 at 20℃; valence +2 or +4. One of the oldest metals used by h...

Lee, Spike

(Encyclopedia)Lee, Spike (Shelton Jackson Lee), 1957–, African-American filmmaker, b. Atlanta, Ga. As a student at New York Univ., he won recognition with his gradu...

Lehman, Herbert Henry

(Encyclopedia)Lehman, Herbert Henry lēˈmən [key], 1878–1963, American political leader, b. New York City. At first an executive of a textile firm, he became (1908) a partner in the family banking house of Lehm...