Show heartwood of tree Is favored for a post the heartwood 0 of a tree iree makes a more lasting post than the sapwood this Is apparently because the sapwood cell walls are aro comparatively tender and have not yet hardened and become with the more solid material many assume that the inactive heartwood in an old tree starts to deteriorate and so the heartwood from on an old tree would not last as long as that from froin a 0 younger tree but this does docs not seem to hold true sound will have bave practically the same lasting qualities whether from a young or old tree |