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  1. Dr. J. R. Cowan examining nine days regrowth on culture 237, January 11, 1955

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    Dr. J. R. Cowan examining nine days regrowth on culture 237. Picture taken January 11, 1955. Plant was clipped on January 2.

  2. Tall fescue, circa 1955

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    Showing bagging and tagging procedures by J. R. Cowan in controlled breeding experiment.

  3. Harry Schoth standing on the original plot of alta tall fescue, 1950

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    Harry Schoth standing on the original plot of alta tall fescue which he was responsible for originating. This photo was taken on the West Farm, Oregon State College, Corvallis. This is where the Federal Forest...

  4. Twin flat fan spray and single flat fan spray illustration, circa 1955

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  5. Set-up used to germinate barnyard grass seeds in solution containing EPTC, circa 1955

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  6. Seventeen day old barnyard grass seedlings, circa 1955

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    Seventeen day old barnyard grass seedlings with emerged from soil having 3-6 ppm of EPTC.

  7. Representative seven day old seedlings, circa 1955

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    Representative seven day old seedlings germinated in rolled paper towels moistened with water, indicated ppm EPTC.

  8. Apparatus used for exposure of seedlings to EPTC vapors, circa 1955

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    Apparatus used for exposure of seedlings to EPTC vapors consisting of a ring jelly mold, 1 quart oil can, and a plastic bag.

  9. Barnyard grass seedlings, circa 1955

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    Barnyard grass seedlings germinated on the surface of firmly packed soil under a sealed plastic bag.

  10. Barnyard grass seedlings, circa 1955

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    Jean Dawson's file

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