This thread-bound book is a rare and valuable piece of Chinese history. It contains information on meridians, latitudes, and the treatment of warm syndrome fever. The book has been numbered and is a collector's item for those interested in Asian history and culture. The publisher, Collector Books, has ensured that the book is in excellent condition for its age. The book originates from China, making it even more special for collectors. It is an excellent addition to any antique or collectible book collection.