1. Biography of Su Sung; 2. Transmission of the Text of Su Sung's Book; 3. Su Sung's Memorial to the Emperor Che Tsung; 4. Translation of Su Sung's Third Chapter; 5. Explanation of Su Sung's Clockwork; 6. Historical Background of Su Sung's Clock; 7. The Development of Clockwork after Su Sung; 8. The context of the Inventions; 9. General History and Transmission of Astronomical Clocks.
A reissue with a foreword and supplement, of a modern classic published in 1960.