Encounter of Spiritual Charm --From Letters to Travels: On the Writing of Two Sketches of Travels in Hunan;

With large quantities of mesothermal epithermal antimony,arsenic,mercury,gold and lead zinc deposits,the central and western Hunan is an important base area of polymetallic deposits in China.

Neoproterozoic-Paleozoic strata of western and central Hunan are the main ore-bearing beds of Au, Sb, As and other metal ore-forming elements.

Adaptability of the Import Potato Varieties in West Hunan;

Ornamented Tubes from Middle Cambrian of Huayuan, West Hunan, China;

Reasonably Developing and Utilizing Mineral Resources to Serve the Building up of Economy of West Hunan;