is experi

[Caudy Sanor]

N of the wood, to form water; and that the carbon of the wood, remaining
alone, appears of its usual black colour. MRS. B. Very well indeed, my
dear; that is certainly the most plausible explanation. EMILY. Would not
this be a good method of making charcoal? MRS. B. It would be an
extremely expensive, and, I believe, very imperfect method; for the
action of the acid on the wood, and the heat produced by it, are far
from sufficient to deprive the wood of all its evaporable parts.
CAROLINE. What is the reason that vinegar, lemon, and the acid of
fruits, do not produce this effect on wood? MRS. B. They are vegetable
acids, whose bases are composed of hydrogen and carbon; the oxygen,
therefore, will not be disposed to quit this radical, where it is
already united with hydrogen. The strongest of these may, perhaps, yield
a little of their oxygen to the wood, and produce a stain upon it; but
the carbon will not be sufficiently uncovered to assume its black
colour. Indeed, the several mineral acids themselves possess this power
of charring wood in very different degrees. EMILY. Cannot vegetable
acids be decomposed, by any combustibles? MRS. B. No; because their
radical is composed of two s
-------------- next part --------------
A non-text attachment was scrubbed...
Name: persister.jpg
Type: image/jpeg
Size: 9277 bytes
Desc: not available
Url : http://freedesktop.org/archives/dbus-commit/attachments/20090901/2791026e/attachment-0001.jpg