Some Considerations on the Alternation of Generations in Plants: Delivered Before the Botanical Seminar of the University of Nebraska, 1896 (Hardcover)
The Metaspermae of the Minnesota Valley: A List of the Higher Seed-Producing Plants Indigenous to the Drainage-Basin of the Minnesota River (Hardcover)
The Metaspermae of the Minnesota Valley. A list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River Reports of (Paperback)
The Metaspermae of the Minnesota Valley. a List of the Higher Seed-Producing Plants Indigenous to the Drainage-Basin of the Minnesota River (Hardcover)
The Metaspermae of the Minnesota Valley: A List of the Higher Seed-Producing Plants Indigenous to the Drainage Basin of the Minnesota River (Hardcover)
