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The growth rings of an unknown tree species, at Bristol Zoo, Bristol, England. This trunk is three feet (1 metre) across.
Notice that a ring is not of uniform width i.e. it cannot be assumed that a wide ring represents a good growing season since the opposite conclusion could be made elsewhere on the same ring. Photographed by Adrian Pingstone in September 2005 and released to the public domain.

Date  (according to Exif data)
Source Own work
Author Arpingstone


Arpingstone, the copyright holder of this work, hereby publishes it under the following license:
Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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current14:48, 5 December 2005Thumbnail for version as of 14:48, 5 December 20051,800 × 1,347 (647 KB)Arpingstone (talk | contribs)Tree ring
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