Photographic image
Ray Schulenberg speaking to group of women in the prairie1964 – 1965
Purrington, Frank L.
Article
Pinus parviflora Siebold and Zuccarini, Japanese White Pine: (Pinaceae) Pine FamilyDecember 21 1965 – March 20 1966
Tyznik, Anthony
Article
Introduced Woody Plants in the Flora of the Chicago RegionSeptember 21 – December 20 1969
Swink, Floyd, Schulenberg, Ray
Drawing
Arboretum Landscape Teaching Aid Series: Cut-Over and Grazed Land1940 – 1960
Watts, May Theilgaard
Book
The origin of the serif : brush writing & Roman letters / Edward M. Catich.1968
Catich, Edward M.