Word: sequoia
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Dates: during 1940-1949
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...growth patterns, was begun in 1904 by Astronomer Andrew Ellicott Douglass of the University of Arizona, who was interested in solar activity. Douglass became able to look at a pine ladder or rafter from a prehistoric Indian pueblo, date it exactly as far back as 11 A.D. Sequoia wood from the High Sierra can now be dated back to 1305 B.C. Since the weather, and therefore tree growth, varies from place to place, master tree-ring charts must be worked out for different districts of the U.S. Florence Hawley's district is the biggest yet mapped: the Mississippi Valley...
Died. Gustavus Augustus Eisen, 93, Swedish-American biologist (he corresponded with Darwin, found a way to raise figs in California, got Sequoia National Park created to save the big trees), archeologist (he dug up weighty evidence to prove that the Chalice of Antioch was Sir Galahad's Grail), author (he published some no works, the last a huge monograph on Mesopotamian Cylinder-Seals); in Manhattan...