[Vo]: Coconut shell composition?

[Jed Rothwell]

Thinking about the Case experiment . . . Does anyone know what 
charcoal made from coconut shell might include? Mainly carbon, of 
course, but what other elements?

This source:
http://www.fao.org/docrep/X0451E/X0451e11.htm

Says that shells are:

Lignin 36%
Cellulose 53%

That's 89%. What else?

- Jed