This Article consists of fifteen chapters as follows :
1. Introduction.
2. The Beginning of the Research.
3. Systematic Research in China until 1945.
4. Research in Koreo-Manchuria.
5. The Tsinan Basin and the Tsinling-Keijo (Seoul) Line.
6. Ribeirioids, Ozarkian, Plectronoceras, Agnostida and Corynexochida.
7. The Chosen (Joseon) Supergroup in the Yokusen (Ogcheon) Zone.
8. New Data in Korea.
9. The Development in the Studies in China (1946-).
10. The Great Development in the Studies in China in Recent Years.
11. The Standard Sequence of the Cambro-Ordovician Formations in China.
12. The Basal Part of the Cambrian System and the Pre-Trilobite Stage.
13. The Lower Limits of the Ordovician and Silurian Systems in China.
14. Palaeogeography of China in the Cambro-Ordovician Period.
15. Summary.
The History of Research in China is here divided into the initial stage started about 1856, the second stage from 1922 to 1945, the third stage of about 20 years from 1946 and the fourth stage started after an interval of about ten years. The researh developed in Koreo-Manchuria is also summarized, and the present status outlined.