Biblio

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1922
Douglass, AE. Anon.1922. Some Aspects of the Use of the Annual Rings in Trees in Climatic Study. The Smithsonian Report for 1922. The Smithsonian Report for 1922.
Douglass, AE_Some Aspects of the Use of the Annual Rings of Trees in Climatic Study_1922.pdf (20.6 MB)
Douglass, AE. Anon.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. No. 2. Proceedings of the American Philosophical Society.
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)