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Changes : an all new natural history experience : join the staff of the Changes Institute to explore environmental change in Illinois
Life's dawn on earth : being the history of the oldest known fossil remains, and their relation to geological time and to the development of the anim…
Life on the earth its origin and succession
Ancient plants, being a simple account of the past vegetation of the earth and of the recent important discoveries made in this realm of nature study
A supplement to Baines' Flora of Yorkshire, with a map : part first, the flowering plants and ferns by John Gilbert Baker : part second, the mosses o…
Geologic, geomorphic and chemical characteristics of wetlands selected for use in biocriteria development by the Montana Department of Environmental …
...Ferns, fossils and fuel; the story of plant life on earth
Plant geography
A treatise on the geography and classification of animals
