RSS 1.0Astronomy
The Laboratory of Tree-Ring Research
In 1937 A. E. Douglass, founder of the modern science of dendrochronology, established the Laboratory of Tree-Ring Research at the University of Arizona. The Tree-Ring Lab is recognized worldwide as a preeminent center for the advancement of tree-ring techniques and the broad application of dendrochronology in the social and environmental sciences.
The Tree-Ring Lab collections and archives includes materials from LTRR's first director, Andrew Ellicott Douglass. Selected items from the A.E. Douglass archives have been digitized and made available in this online collection.
For more information about The Laboratory of Tree-Ring Research, including collections and archives available for research, visit the LTRR website at: http://ltrr.arizona.edu.
Copyright © Arizona Board of Regents. The University of Arizona.
Recent Submissions
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The Steward Observatory of the University of Arizona(Astronomical Society of the Pacific, 1918-12)
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The Callendar Sunshine Recorder and Some of the World-Wide Problems to Which This Instrument Can Be Applied(Washington, Government Printing Office, 1916-01-08)
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Zodiacal Light and Counter-Glow and the Photography of Large Areas and Faint Contrasts(Harrison & Sons, St. Martin's Lane, Printers in Ordinary to His Majesty, 1916)
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An Optical Periodograph(1915-04)
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Drawings of a Comet(1910-03)
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Is Mars Inhabited?(1907-03)
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Photographs of the Zodical Light(Astronomical Society of the Pacific, 1901-04-01)
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A New Almucantar(1903-04-13)
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The Missing November Meteor(The Coconino Sun, 1900-11)
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Weather Prediction in Northern Arizona(The Coconino Sun, 1900-12-01)
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Mars.(1899-01)
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A Summary of Planetary Work at the Lowell Observatory and the Conditions Under Which It Has Been Performed(1899)In accordance with the title, the present paper divides itself into two parts, of which the first wil1 be a brief resume of the planetary work done here, with a few details and announcements which have not heretofore been given to the public, and the second will present the writer's personal opinions of why it has been possible to reach these results. The latter must necessarily be more in the form of suggestions than facts, for to give facts one must have tried personally many widely separated localities over long periods of time.
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The Markings on Venus(Royal Astronomical Society, 1898)
