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>Some observations, directions and inquiries concerning the motion of sap in trees, in pursuance of what was formerly begun therein, about the letter end of 1668. and the next following spring, by Dr Ezerel Tonge, and Francis Willoughby Esq;
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Some observations, directions and inquiries concerning the motion of sap in trees, in pursuance of what was formerly begun therein, about the letter end of 1668. and the next following spring, by Dr Ezerel Tonge, and Francis Willoughby Esq;
