Nature writing is nonfiction, fiction prose or poetry about the natural environment. It often draws heavily on scientific information and facts about the natural world; at the same time, it is frequently written in the first person and incorporates personal observations of philosophical reflections upon nature. ~ from Wikipedia.
An American naturalist, photographer and Pulitzer Prize-winning writer, Teale's works serve as primary source material documenting environmental conditions across North America from 1930 - 1980. He is perhaps best known for his series The American Seasons, four books documenting over 75,000 miles of automobile travel across North America following the changing seasons. ~ from Wikipedia
Here they are in the Cattell Library:
The twenty-six president of the United States was a prolific author, and is responsible, through his writings and legislative actions, for helping to preserve more of the environment of the United States than any other individual - from the DLB 275