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Hopkins, R.S.
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Irrigation projects
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Klamath project (U.S.) -- History
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Mosses
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KP-1127-R2 - Klamath Project; Showing A-4-Lateral three days after it had been treated with Benechlor 3C for killing of moss. No moss is in evidence. Same location as picture KP-1125; July 15, 1945; Photo ...
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