Abstract
IN reply to the note of Mr. H. J. Colbourn on "Influences of Terrestrial Disturbances on the Growth of Trees," in your issue of April 23, allow me to say that his ingenious suggestion of connecting a zone of narrow rings in a section of Douglas spruce with some supposed terrestrial disturbances occurring about the same time, is hardly tenable, even if the coincidence of the two phenomena were established, which seems not to be the case. The occurrence of a zone of narrow rings is common in all our trees, and I have observed it most frequently in all southern pitch pines, which are rarely over three hundred years old, and hence outside of the possibilities of the influence of unknown or uncertain terrestrial disturbances.
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FERNOW, B. Influence of Terrestrial Disturbances on the Growth of Trees. Nature 54, 77 (1896). https://doi.org/10.1038/054077b0
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DOI: https://doi.org/10.1038/054077b0
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