English literature -- History and criticism -- Theory, etc.

Nature in literature.

American literature -- History and criticism -- Theory, etc.

Conservation of natural resources in literature.

Environmental protection in literature.

Philosophy of nature in literature.

Forests in literature.

Wilderness areas in literature.

Outdoor life in literature.

Ecology in literature.

Landscapes in literature.

Ecocriticism.

Criticism -- Great Britain.

Criticism -- United States.