. Bulletin of the United States Geological Survey--The San Francisco Earthquake and Fire of April 18, 1906 and their effects on structures and structural materials . B. WALL THROWN DOWN BY EARTHQUAKE VIBRATIONS OF ROOF TRUSSES WHICH WERENOT TIED TO WALL, VANDERVOORT BROTHERS LIVERY, PALO ALTO. EARTHQUAKE EFFECTS ON CEMENT-BLOCK WALLS. Photographs by Richard L.

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Keywords: ., bookcentury1900, bookdecade1900, bookidbulletinofun, bookyear1907