San Francisco : Architect and Engineer, Inc · leaf 115
^^Y, NINETEEN THIRTY-FOUR festation in wood generally takes placewhile the timber is being seasoned, espe-cially in the yards of warehouses of thehardwood lumber companies. These beetles breed like the deathwatches, generation after generation in the same timber, finally reducing most of… … Fig. 3—At left is a piece of Douglas fir taken from a Berkeley. California,home infested by Hadrobregenus gibbicollis fig. 1-c. At the right shows theresult of these beetles work in an old branch. Note the completeness of thehoneycombing and the focal pellets in the burrows, closely resembling…
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