http://www.mosnews.com/weird/2009/04/13/firtree/

or try this one

http://uk.news.yahoo.com/4/20090415/...g-41f21e0.html

Hmmm. I wonder how to do that with Cocoblo?
Marc


Not sure about Cocobolo, but here's another wood ...
http://www.ncbi.nlm.nih.gov/pubmed/8...?dopt=Abstract

`Casper