The book "Conversations with the Old Chemist" (池北偶談) is an ancient Chinese treatise on botany, pharmacology and natural substances, written in the 17th century by the author Wang Shizen. In this book, the author combined a wide range of knowledge about herbs, medicine and natural substances used at that time in China. "Conversations with an Old Chemist" is considered one of the most authoritative sources on traditional Chinese medicine and botany. This book helps to better understand the relationship between man and nature, as well as the use of plants in the practice of medical procedures. It is worth noting that "Conversations with an Old Chemist" has become a valuable source for anyone interested in the history of Chinese medicine and pharmacology.