San Francisco : Architect and Engineer, Inc · leaf 35
ons level with the ground, oronly slightly above. Termites, however,even in northern California, may build run- ^ 33 ► ways over high concrete foundations, andin several instances have been known tobuild over walls nine, twelve, and evenfourteen feet in height (Fig. 22). It isprobable that such… … Fig. 21—Tree stump left under an apartment building. The stump is in-fested with subterranean termites. The firewood piled in contact with theground and stump may also provide an avenue of attack. extensive excavation, would be found toresult from an abundant supply of formboards left in the soil…
Architecture · Building
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