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You searched for: Start Over History Remove constraint History Author Hopkins, R.S. Remove constraint Author: Hopkins, R.S. Subject Irrigation projects Remove constraint Subject: Irrigation projects Subject Men Remove constraint Subject: Men Subject Mosses Remove constraint Subject: Mosses

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	KP-1126-R2 - Klamath Project; View of crowd watching the demonstration for the chemical treatment of moss in irrigation ditches and drains; July 12, 1945; Photo by R. S. Hopkins
	Citation Citation Citation Abstract Copy Title: Chemical treatment of moss in an irrigation ditch Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1045, 2006, 2005 KP-1126-R2 - Klamath Project; View of crowd watching the demonstration for the chemical treatment of moss in irrigation ditches and drains; July 12, 1945; Photo by R. S. Hopkins Title: Chemical treatment of moss in an irrigation ditch Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1045, 2006, 2005 KP-1126-R2 - Klamath Project; View of crowd watching the demonstration for the chemical treatment of moss in irrigation ditches and drains; July 12, 1945; Photo by R. S. Hopkins