[Gasification] Charcoal: Char Analyses?

[Mark & Elena Gallmeier]

To All,

Can anyone suggest data sources for existing char analyses that were 
conducted by wood species, either on the internet or in printed references? 
As many tree wood species as possible.  Minimum data should include ash 
content, fixed carbon percentages, percent volatiles, energy per weight, 
etc.

What I would most like to find are analyses by species, for a range of fixed 
carbon percentages within each species.  I am mainly interested in chars 
from North American tree species, but similar analyses for other continents 
will be very helpful too.

Thanks,

Mark