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MAKE A MEME View Large Image Climatic Cycles and Tree-Growth Fig 32.jpg en Fig 32 �Smoothed curve of Arizona pines showing the half-sunspot period for 120 years 1919 Climatic Cycles and Tree-Growth Andrew Ellicott Douglass PD-old-100 Climatic Cycles and Tree-growth

Climatic Cycles and Tree-Growth Fig 32.jpg en Fig 32 �Smoothed curve of Arizona pines showing the half-sunspot period for 120 years 1919 Climatic Cycles and Tree-Growth Andrew Ellicott Douglass PD-old-100 Climatic Cycles and Tree-growth

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Keywords: Climatic Cycles and Tree-Growth Fig 32.jpg en Fig 32 �Smoothed curve of Arizona pines showing the half-sunspot period for 120 years 1919 Climatic Cycles and Tree-Growth Andrew Ellicott Douglass PD-old-100 Climatic Cycles and Tree-growth