Climatic cycles and trees-growth : a study of annual rings of trees in relation to climate and solar activity

DOUGLAS, A.E

Climatic cycles and trees-growth : a study of annual rings of trees in relation to climate and solar activity - Washington 1919 - 171p - Historic , Naturalic, Classic, v.90 .


SILVICULTURE

SILVICULTURE TREES -- PHYSIOLOGY

636.95 D66C

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