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Measuring Tree Rings

Overview of tree ring measurement:

http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artjan02/treering.html

Learn about tree ring growth:

http://www.classzone.com/books/earth_science/terc/content/investigations/es2905/es2905pa ge01.cfm
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