I've been offered a fresh silver birch burr. It's currently still attached to a felled tree which has been bucked into lengths, so it's on a 4ft length of log, which is about 10inch diameter. The burr itself forms a crust, wrapping around about 80% of the trunk, and is about 6" thick on average. beyond that, there's no clue as to what happens inside the timber, but I'm itching to have a go at it.
Any idea what to expect inside? What does it look like, how does it work, how does it dry?
![Huh ???](http://www.awgb.co.uk/awgbforum/Smileys/classic/huh.gif)
? Any thoughts on this would be appreciated.
Thanks guys...Les