The rubber tree book . c Diagram of Radial (Longitudinal) Section of Stem in sameTree. (Magnified 12 times.) B, Bark proper. St,Groups of hardened cells in cortex. MR, Layersof laticiferous vessels in cortex. C, Cambium. M. n^B. Diagram of Radial (Longi-tudinal) Section throughthe Lower Part of a Tap-ping Area. (Magnified 7times.) The section wasmade one day after thelast tapping. New bark(B) is forming above. OfsLx layers of laticiferousvessels five have beentapped.

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Keywords: ., bookcentury1900, bookdecade1910, bookidrubbertreebo, bookyear1913