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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). 1920. “Evidence Of Climatic Effects In The Annual Rings”. Ecology 1 (No. 1). Ecology.
Douglass, AE_Evidence of Climatic Effects in the Annual Rings of Trees_1920.pdf (11.8 MB)