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• 1. [Image] Leaf moss, Richardson's Pondweed, in J-13 Lateral before treating

  	KP-1495-R2 - Klamath Project; June 10, 1947; Photo by R. S. Hopkins
  	Citation × Citation Citation Abstract Copy Title: Leaf moss, Richardson's Pondweed, in J-13 Lateral before treating Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1947, 2006, 2005 KP-1495-R2 - Klamath Project; June 10, 1947; Photo by R. S. Hopkins Title: Leaf moss, Richardson's Pondweed, in J-13 Lateral before treating Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1947, 2006, 2005 KP-1495-R2 - Klamath Project; June 10, 1947; Photo by R. S. Hopkins Close

• 2. [Image] Leaf moss in J-13 Lateral 70 hours after treatment

  	KP-1501-R2 - Klamath Project; June 13, 1947; Photo by R. S. Hopkins
  	Citation × Citation Citation Abstract Copy Title: Leaf moss in J-13 Lateral 70 hours after treatment Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1947, 2006, 2005 KP-1501-R2 - Klamath Project; June 13, 1947; Photo by R. S. Hopkins Title: Leaf moss in J-13 Lateral 70 hours after treatment Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1947, 2006, 2005 KP-1501-R2 - Klamath Project; June 13, 1947; Photo by R. S. Hopkins Close

• 3. [Image] Moss at the top of water about one mile downstream from point of treatment

  	KP-1125-R2 - Klamath Project; Picture taken before the chemical had reached that point; July 12, 1945; Photo by R. S. Hopkins
  	Citation × Citation Citation Abstract Copy Title: Moss at the top of water about one mile downstream from point of treatment Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1945, 2006, 2005 KP-1125-R2 - Klamath Project; Picture taken before the chemical had reached that point; July 12, 1945; Photo by R. S. Hopkins Title: Moss at the top of water about one mile downstream from point of treatment Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1945, 2006, 2005 KP-1125-R2 - Klamath Project; Picture taken before the chemical had reached that point; July 12, 1945; Photo by R. S. Hopkins Close

• 4. [Image] Chemical treatment of moss in an irrigation ditch

  	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 Close

• 5. [Image] Use of benechlor for the treatment of moss in the A-4 Lateral

  	KP-1124-R2 - Klamath Project; Close up view of nozzles admitting Benechlor 3C to the water in the A-4 Lateral for the treatment of moss; July 12, 1945; Photo by R. S. Hopkins; Photo is mounted upside d...
  	Citation × Citation Citation Abstract Copy Title: Use of benechlor for the treatment of moss in the A-4 Lateral Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1945, 2006, 2005 KP-1124-R2 - Klamath Project; Close up view of nozzles admitting Benechlor 3C to the water in the A-4 Lateral for the treatment of moss; July 12, 1945; Photo by R. S. Hopkins; Photo is mounted upside down Title: Use of benechlor for the treatment of moss in the A-4 Lateral Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1945, 2006, 2005 KP-1124-R2 - Klamath Project; Close up view of nozzles admitting Benechlor 3C to the water in the A-4 Lateral for the treatment of moss; July 12, 1945; Photo by R. S. Hopkins; Photo is mounted upside down Close

• 6. [Image] A-4 Lateral three days after chemical treatment of moss

  	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 ...
  	Citation × Citation Citation Abstract Copy Title: A-4 Lateral three days after chemical treatment of moss Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1945, 2006, 2005 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 by R. S. Hopkins Title: A-4 Lateral three days after chemical treatment of moss Author: United States. Bureau of Reclamation, Hopkins, R.S. Year: 1945, 2006, 2005 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 by R. S. Hopkins Close