A century of change : a photographic history and analysis of vegetation conditions, El Morro National Monument, 1891-1983 /

"February 25, 1984."

Fragments of the natural history of Pennsylvania /

No more published; pt. 1 treats of birds, with data regarding vegetation and miscellaneous observations.

Des Plaines River long-term monitoring program : vegetation analyses and habitat characterization : phase III report /

"Report to Commonwealth Edison Company, Chicago."--Cover.

Effects of using hybrid carp to control aquatic vegetation /

"Aquatic Biology technical series 1983(1)"--Cover.

The preservation and management of vegetation in ravines in Highland Park, Illinois : a report /

"With the assistance of the Public Works and Community Development Departments, City of Highland Park, Illinois."

The botanic garden. A poem in two parts. Part I. Containing The economy of vegetation. Part II. The loves of the plants. With philosophical notes.

"Note XXII--Portland vase": pt. 1, p. 197-206, 4 plates.