The ultimate tree rings pages

Ragione Sociale: The ultimate tree rings pages
Descrizione:

the ultimate tree-ring web pages, designed to be the ULTIMATE source for information on tree-ring research (dendrochronology). I’ve designed these pages to be easily understood by people at all levels of education, from elementary school students to high school students, from first grade teachers to college professors. You won’t find anything fancy here – I want these pages to be readable, enjoyable, and (most of all) educational.

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