As a part of our work in the Wood Preservation group at the Eastern Forest Products Laboratory in Ottawa to facilitate exploitation of spruce, which is a large timber resource in Canada, we have been studying the treatability of spruce roundwood. A report on this subject was presented to this group last year. More recently, another commodity - spruce timber - has been rapidly gaining the interest of wood treaters, mainly because of its potential use in permanent wooden foundations. We identified this trend and extended our research work to the treatability of spruce lumber.

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