by University of Illinois (Urbana-Champaign campus). Engineering Experiment Station

1922

by University of Texas. Board of Regents

1900

by University of Texas

1906

by University of Missouri. School of Mines and Metallurgy

1908

by University of Arizona

1914

by University of Idaho

1915

by University of Idaho

1910

by University of Illinois (Urbana-Champaign campus)

1910

by University of Arizona

1926

by University of Illinois (Urbana-Champaign campus)

1926

by University of Illinois (Urbana-Champaign campus). Board of Trustees

1926

by University of Illinois (System). Board of Trustees

1926