通过化学方法从灰烬中提取镍，他们每英亩土地生产了100磅镍，每磅的总成本略高于目前的采矿成本。
By chemically extracting nickel form the ash, they produced 100 pounds of nickel per acre of land at a total cost per pound slightly above that of current mining.
到19世纪末，不仅机械，土建，采矿和冶金工程得到了提高，还出现了较新的如化学和电气工程这样的专业。
By the end of the nineteenth century not only were mechanical, civil, and mining and metallurgical engineering established but the newer specialties of chemical and electrical engineering emerged.
1935年建立，科学工程学院(前身为理工学院)汇集了工程，采矿，建筑和化学方面的大学课程。
Created in 1935, the College of Science and engineering (formerly known as the Institute of Technology) brought together the University's programs in engineering, mining, architecture, and chemistry.
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