Biography.com: Hempel, Carl Gustav: Brief outline of the life of this German-born thinker.
Carl Gustav Hempel: Essay with bibliography on this 20th-century thinker's life and ideas, by Mauro Murzi. From the Internet Encyclopedia of Philosophy.
FOLDOC: Hempel Carl Gustav: Entry on this logician and philosopher, with links to related topics.
Geometry and Empirical Science: Text of a 1945 paper by Hempel from the American Mathematical Monthly. Frameset with table of contents and text in separate frames.
On the Nature of Mathematical Truth: Text of Hempel's 1945 paper from the American Mathematical Monthly. Notes, table of contents, and text in separate frames.
Problems and Changes in the Empiricist Criterion of Meaning: Text, with original pagination, of a 1950 paper by Hempel from the Revue Internationale de Philosophie.
The Doomsday Argument and Hempel's Problem: Paper by Paul Franceschi, discussing Hempel's paradox of confirmation in detail, and a commonly-proposed solution to it.