On a piece of chalk /
by Thomas Henry Huxley ; edited & with introduction & notes by Loren Eiseley, drawings by Rudolf Freund.
- New York : Scribner, c1967.
- 90 p. : ill. ; 26 cm.
"First delivered in 1868 as a lecture to the working men of Norwich during the meeting of the British Association for the Advancement of Science." Includes index.