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Douglass, AE. 1929. “Secret Of The Southwest Solved By Talkative Tree Rings ”. National Geographic Magazine. National Geographic Magazine.
PDF icon Douglass, AE_Secret of the Southwest Solved by Talkative Tree Rings_1929.pdf (55.05 MB)
Douglass, AE. 1921. “Dating Our Prehistoric Ruins”. Natural History. Natural History.
PDF icon Douglass, AE_Dating Our Prehistoric Ruins_1921.pdf (55.42 MB)
Douglass, AE. 1935. “Dating Pueblo Bonito And Other Ruins Of The Southwest”. National Geographic Society. National Geographic Society. National Geographic Society.
PDF icon Douglass, AE_Tree Ring Dates and Dating of Southwestern Prehistoric Ruins.pdf (3 MB)
Douglass, AE. 1922. “Some Topographic And Climatic Characters In The Annual Ring Of The Yellow Pines And Sequoias Of The Southwest ”. Proceedings Of The American Philosophical Society LXI (No. 2). Proceedings Of The American Philosophical Society.
PDF icon Douglass, AE_Some Topographic and Climatic Characters in the Annual Ring of the Yellow Pines and Sequoias of the Southwest_1922.pdf (5.9 MB)
Douglass, AE. 1937. “Tree Rings And Chronology”. University Of Arizona Bulletin VII (No. 4). University Of Arizona Bulletin.
PDF icon Douglass, AE_Tree Rings and Chronology_1937.pdf (58.21 MB)