| LC control no. | n 81139598 |
|---|---|
| Personal name heading | Hammond, John Hays, 1855-1936 |
| Found in | The milling of gold ores ... 1887? History of the Panama Canal, 1915: t.p. (John Hays Hammond, associate ed.) p. 473 (b. San Francisco, Ph.B., A.M., Yale University, engineer, geological surveyor, president, Am. Inst. Mining Engineers) |
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