The SciencesJuly 20, 1895A Line of Twenty-Eight Inch Cast-Iron Submerged Pipes across the Willamette River, at Portland, OreFranklin Riffle, Albert S. Riffle
The SciencesJuly 13, 1895A Line of Twenty-Eight Inch Cast-Iron Submerged Pipes across the Willamette River, at Portland, OreFranklin Riffle, Albert S. Riffle
