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Aster novae-angliae (New England aster)

Aster novae-angliae (New England aster)

Aster novae-angliae (New England aster) specimen (handcolored), including flowers and leaves, identified as negative 989
Aster novae-angliae (New England aster)

Aster novae-angliae (New England aster)

Aster novae-angliae (New England aster) specimen (handcolored), including flowers and leaves, identified as negative 989
Astragalus (Ground plum-vetch)

Astragalus (Ground plum-vetch)

Astragalus (Ground plum-vetch), in situ (black and white)
Astragalus (Ground plum-vetch)

Astragalus (Ground plum-vetch)

Astragalus (Ground plum-vetch), in situ (black and white)
Astronomical classroom and observatory under construction near the Field House, the University of Iowa, 1929

Astronomical classroom and observatory under construction near the Field House, the University of Iowa, 1929

Astronomy observatory on roof of Physics Building, The University of Iowa, 1930s

Astronomy observatory on roof of Physics Building, The University of Iowa, 1930s

Physics Building is now known as MacLean Hall.
Astronomy observatory on roof of Physics Building, The University of Iowa, 1930s

Astronomy observatory on roof of Physics Building, The University of Iowa, 1930s

The Physics Building is now known as MacLean Hall.
Astronomy Prof Discusses Inter-planetary Travel Prospect

Astronomy Prof Discusses Inter-planetary Travel Prospect

Drake University's student newspaper, the Drake Times-Delphic interviews Astronomy professor Phillip Riggs.
Astronomy Professor Riggs Questions Planet's Status

Astronomy Professor Riggs Questions Planet's Status

Phillip Riggs talks about Pluto's status as a planet in an article in the Drake Times-Delphic
Astronomy student at telescope and eclipse shot, The University of Iowa, November 1960

Astronomy student at telescope and eclipse shot, The University of Iowa, November 1960