Plan
An Endangered Plant Species Area Fence Design, the Morton Arboretum, Lisle, Illinois1991
Tyznik, Anthony
Map
A Grading Plan for the Cactus Pit [including proposed location of plant habitats]1989
Tyznik, Anthony
Map
Cross-sections and Elevations of the Cactus Pit [preliminary to development of the Endangered Species Habitat]July 17 1989
Hootman, Rick