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On 9/2/04 5:36 PM Bea Hopkinson writes:
>I am new to this most interesting list and hope listmembers will not
>mind my slightly off-subject question with regard to the current thread
>which I have been following with great interest.
>
>I am interested specifically in the temperature at which the wood fused
>and became charcoal as wood is often placed in with pottery for firing.
>My own field is prehistoric saltmaking, where the ceramic vessels were
>low fired and brittle, the firing temperature thought to be about 700
>degrees F. We know that a great deal of 'copse wood' was utilized for
>boiling, we don't generally know what kind of wood.
>
As I wrote on this subject, there is llth century evidence of loads of
wood
being provided for boiling in exchange for salt.
While bearing in mind weight differences between ash, pine, oak, etc. and
green and dry wood , it can be assumed that the cost of cut wood suitable
for burning in the salt furnaces had recognizable diensions and weights,
as do cords of wood today which are equal to 64 cu.ft (4 ft. x 4 ft. x 4
ft.) weighing from 200-350 lbs. according to moisture content (which I
thought of as 'green' wood.
I was thus curious about your reference below to "wet" wood as
differentiated from "dry" or "green" wood ? is there another dimension I
did not take into consideration?
Bea Hopkinson
>
>On 9/2/04 12:27 AM Nic Dolby writes:
>
>>The thickwalled Eucalyptus diversicolor has fusing while the thin
>>walled E. marginata does not. I think this sounds right for the
>>eucalypts, that fusing occurs more readily in taxa with thickwalled
>>fibres, but it doesn't explain the varying degree of fusing that occurs.
>>I always assumed that it was wet or green wood, perhaps higher
>>temperature fires, following Prior.
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