Hydraulic Mining in California Lisa Lewis pump water

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supervisor of instruction

Piedmont College Instructional Patterns: Strategies for Maximizing Student Learning examines instruction from the learners' point of view by showing how instructional patterns can be used to maximize the potential for students to learn

She coined the term radioactivity

Hydraulic Mining in California Lisa Lewis pump waterHydraulic mining was, and remains, controversial. It produced great wealth from the soil of California, yet damaged the land in such a way that the scars will remain for eons. Great hillsides were denuded of soil by streams of water which boggle the imagination, and the sediment which was washed away filled the streambeds of the valleys below, causing flooding which decimated agriculture and inundated towns. This important new work, the first book