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Scientific American, Vol. 101, No. 18 (October 1909) (1909)

leaf 7

An illustration from Scientific American, Vol. 101, No. 18 (October 1909), 1909, leaf 7
ientific knowledge has been ap- growth of timber free of knots. The trees are usually official statement the most potent argument for in- plied with the greatest technical success; and it has planted in straight rows, and in about twenty years creased conservation of forest lands. Systematic state-… … $15; when sixty, $80. case in young woods. The trees are Every product of the forests of Ger- Part of forest tree nursery, Thfiringen, Germany. not permitted to reach the full limit many and southern Europe finds ready of their life and then, as the result of utilization. This is due to the good…

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