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infancy

(Encyclopedia)infancy, stage of human development lasting from birth to approximately two years of age. The hallmarks of infancy are physical growth, motor development, vocal development, and cognitive and social d...

Hoopa

(Encyclopedia)Hoopa ho͞oˈpə [key], Native North Americans whose language belongs to the Athabascan branch of the Nadene linguistic stock (see Native American languages). In the 19th cent. they occupied the valle...

Innis, Harold Adams

(Encyclopedia)Innis, Harold Adams, 1894–1952, Canadian political economist, b. Otterville, Ontario. One of Canada's leading economic historians, Innis wrote about various facets of Canadian culture and economy. I...

conservation of natural resources

(Encyclopedia)conservation of natural resources, the wise use of the earth's resources by humanity. The term conservation came into use in the late 19th cent. and referred to the management, mainly for economic rea...

lexicography

(Encyclopedia)lexicography, the applied study of the meaning, evolution, and function of the vocabulary units of a language for the purpose of compilation in book form—in short, the process of dictionary making. ...

Hyatt, Alpheus

(Encyclopedia)Hyatt, Alpheus, 1838–1902, American zoologist, b. Washington, D.C., grad. Harvard, 1862. He was a devoted follower of Louis Agassiz. From 1870, Hyatt was custodian and later curator of the Boston So...

Latter-day Saints, Church of Jesus Christ of

(Encyclopedia)Latter-day Saints, Church of Jesus Christ of, name of the church founded (1830) at Fayette, N.Y., by Joseph Smith. The headquarters are in Salt Lake City, Utah. Its members, now numbering about 5.7 mi...

Karlin, John Elias

(Encyclopedia)Karlin, John Elias, American industrial psychologist and human-factors engineering pioneer, b. Johannesburg, South Africa, grad. Univ. of Cape Town (B.A., M.A.), Univ. of Chicago (Ph.D., 1942). With a...

pragmatism

(Encyclopedia)pragmatism prăgˈmətĭzəm [key], method of philosophy in which the truth of a proposition is measured by its correspondence with experimental results and by its practical outcome. Thought is consid...

Róheim, Géza

(Encyclopedia)Róheim, Géza, 1891–1953, Hungarian anthropologist and psychoanalyst. He was educated at the universities of Leipzig, Berlin, and Budapest (Ph.D., 1914). From 1928 to 1931 he did fieldwork in centr...