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The Refugio Valley
Rocks, Soils, Hills and Valleys
Estuary and Watershed
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The Hercules Powder Works
Explosives and the Second Industrial Revolution
Commerce in Explosive Products
Operation and Development of the Hercules Works
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“Historic US 40 Route” Sign Project
Seeking Information on Ceramic Acid Vessels
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Irene Slick Dias
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Installation of Equipment for Sulphuric Acid Plant
Equipment installed for sulphuric acid production.
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Independence Day Parade, July 4, 1982
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