1. On Meng Qian's pen: written by Shen Kuo in the Northern Song Dynasty, it is a comprehensive work of many disciplines, in which the natural science part summarizes the scientific achievements in ancient China, especially in the Northern Song Dynasty, and is known as "a milestone in the history of science in China".
2. Xu Xiake's Travels: After more than 30 years of on-the-spot investigation, Xu Xiake traveled all over 16 provinces and regions in the Ming Dynasty, and wrote down Xu Xiake's Travels in the form of a diary. This is an important work on geography and geology, which is considered as the most famous geographical tourism document in ancient China and the earliest valuable limestone landform document in the world.
3. Compendium of Materia Medica: Written by Li Shizhen in Ming Dynasty, it is a work of pharmacology, which has made important contributions to pharmacology, botany and zoology, and is known as "the coordinate in the history of science in China".
4. Heavenly Creations: Written in the late Ming and Song Dynasties, it is an encyclopedic work on agriculture and handicraft technology, and is known as "a milestone in the history of science and technology in China".
The above four works have a high status and influence in the history of China, and have important reference value for the research in various fields.