Clear Sky, Pure Light: Encounters with Henry David Thoreau. Compiled and Edited by Christopher Childs, with an introduction by Walter Harding, and wood engravings by Michael McCurdy. The Penmaen Press Limited, 1978, first edition. Hardcover with dust jacket, 102 pp. One of 2000 copies printed. A classic Thoreau quote book, arranged by general subject category. In good condition, with a small tear at the front bottom of the dust jacket, and a bit of dust jacket missing at the top rear.