University of Illinois Urbana-Champaign

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Showing 2041–2070 of 17,493 items
Thumbnail for Sex Ratios and Age Ratios in North American Ducks
Sex Ratios and Age Ratios in North American Ducks
Bellrose, Frank Chapman; Scott, Thomas G.; Hawkins, Arthur Stuart; Low, Jessop B.

Thumbnail for Laboratory studies of sludge digestion
Laboratory studies of sludge digestion
Buswell, Arthur M.; Neave, Sidney Lionel

Thumbnail for Oxidation of coal.
Oxidation of coal.
Yohe, Gail Robert

Thumbnail for Peach Yellows in Illinois
Peach Yellows in Illinois
Tehon, L.R.; Stout, G.L.

Thumbnail for Revising a High School Curriculum
Revising a High School Curriculum
Cierley, Morris Berdyne