Andrew ellicott douglass biography

Unable to afford to continue his education, Douglass worked at the Harvard Observatory as an assistant.
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Andrew Ellicott Douglass was an American astronomer and archaeologist who established the principles of dendrochronology (the dating and interpreting of.

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Andrew Ellicott Douglass

Andrew Ellicott Douglass served as acting president at the University of Arizona for three months from Dec. 20, 1910, to March 10, 1911, between the presidential terms of Kendrick Babcock and Arthur Wilde. At the time he was professor of physics and astronomy and, for the additional responsibility, he received a salary increase of $50. During his short term, he drew up lists of proposals to better the University.

Born in Windsor, Vt., on July 5, 1867, he received a bachelor’s degree from Trinity College in Hartford, Conn. Unable to afford to continue his education, Douglass worked at the Harvard Observatory as an assistant. This allowed him to accompany an expedition to establish an observatory in Peru. Three years later, on his return from Peru, he met the wealthy financier Percival Lowell, who wanted to build an observatory in the Southwest. Douglass was selected to survey potential sites. The site he selected was a mesa west of Flagstaff, Ariz. From 1894 through 1901, Douglass was an assistant astronomer and sometime acting director for the Lowell

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Andrew Ellicott Douglass papers

Photograph of Andrew Ellicott Douglass working at his desk in the Laboratory of Tree-Ring Research, beneath the University of Arizona Football stadium.

About this collection

Chiefly materials related to A.E. Douglass' astronomical and tree-ring research, and administration, at the Harvard College Observatory, Lowell Observatories, Steward Observatory, Laboratory of Tree-Ring Research, and University of Arizona. Includes scientific records; clippings; photographs of astronomical images, observatories, and tree-rings; typescripts of speeches and manuscripts; his published articles; reprints of articles by others; and lecture notes. Correspondence with other scientists includes William Henry Pickering, Percival Lowell, Godfrey Sykes, and Edmund Schulman. Personal correspondence is with his wife Ida Whittington Douglass, and other family members and friends. Drafts, proofs, and final editions, (1919-1936) from of his book .

Involvement with scientific organizations such as the Carnegie Institution, 1918-1938, and the American Association fo

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A. E. Douglass

American astronomer

A. E. (Andrew Ellicott) Douglass (July 5, 1867 in Windsor, Vermont – March 20, 1962 in Tucson, Arizona) was an American astronomer. He discovered a correlation between tree rings and the sunspot cycle, and founded the discipline of dendrochronology, which is a method of dating wood by analyzing the growth ring pattern. He started his discoveries in this field in 1894 when he was working at the Lowell Observatory. During this time he was an assistant to Percival Lowell, but fell out with him when his experiments made him doubt the existence of artificial "canals" on Mars and visible spokes on Venus.^[3]

Douglass was elected to the American Philosophical Society in 1941.^[4]Craters on the Moon and Mars are named in his honor.

Founding of Steward Observatory

After a 5-year hiatus from astronomy, Douglass left Flagstaff, Arizona in 1906 and accepted a position as Assistant Professor of Physics and Geography at the University of Arizona in Tucson, Arizona. Almost immediately upon his arrival in Tucson, Douglass re