Personal account of the author's admiration for the work of Loren Eiseley, including takes on his writing and personal life.

Environmental-history database is curated by the Library of Congress. Search for resources by author, subject or title, and peruse a time line.

Smithsonian Institution's virtual exhibit traces a connection between the 19th-century feather trade and the formation of the Audobon Society.

Academic press synopsizes this title, and briefly details Thoreau's ground-breaking environmental activism.

Sierra Club pays tribute to the pioneering lobbyist who is widely recognized as the founder of the American conservation movement.

Contains details about Earth Day, animal rights and vegetarianism. Also offers articles and a message board.

Complete text online of Henry David Thoreau's classic work of nature, the environment and philosophy.