Page:Climatic Cycles and Tree-Growth - 1919.djvu/69

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DOUGLASS PLATE 7
A Climatic Cycles and Tree-Growth Plate 7A.jpg
B Climatic Cycles and Tree-Growth Plate 7B.jpg

A. Cutting sample from stump, Enterprise: D-22, age 3000 years.

B. Centennial stump, Enterprise, Cut in 1874: D-23, age 3075 years.