%0 Journal Article %J Professional Engineer %D 1931 %T Trees and Droughts in Arizona %A Douglass, A.E. %K climate %K dendrochronology %K Douglass %K droughts %K environment %K historic %K tree %K tree ring %B Professional Engineer %0 Conference Proceedings %D 1929 %T Reports on the Conferences of Cycles %A Carneigie Institution of Washington %K climate %K conference %K cycles %K Douglass %K environment %K historic %K tree %I Carneige Institution %C Washington, D.C. %0 Journal Article %J Ecology %D 1920 %T Evidence of Climatic Effects in the Annual Rings %A Douglass, A.E. %K annual rings %K climate %K climatic %K Douglass %K Ecology %K effect %K effects %K evidence %K historic %K rings %K tree %B Ecology %V 1 %N No. 1 %0 Journal Article %J Bulletin of the American Geographic Society %D 1914 %T A Method of Estimating Rainfall by the Growth of Trees %A Douglass, A.E. %K Douglass %K estimate %K estimating %K growth %K method %K rainfall %K tree %B Bulletin of the American Geographic Society %V XLVI