Discovering Tiny Treasures in Little Donahue Lake » 17_2Oct12_Eric_macroinvertebrates_science

Eric proundly displays his successful Winkler Titration.

Eric proundly displays his successful Winkler Titration.

Luke carefully adds more reagent to his titration.
Jackie carefully adds exactly one more drop of reagent to her Winkler Titration.

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