A Treatise on Hat-Making and Felting
 Including a Full Exposition of the Singular Properties of Fur, Wool, and Hair

by John Thomson

"A Treatise on Hat-Making and Felting" by John Thomson is a comprehensive guide on the art and science of hat-making and felting, published in the late 19th century. This work serves as both a practical manual for hatters and a detailed exploration of materials, techniques, and historical contexts associated with the hatting industry. The book likely covers the intricacies involved in the transformation of raw materials such as fur and wool into wearable hats, emphasizing the relationship between theory and practical craftsmanship. In this treatise, Thomson dives into the characteristics of various furs, wools, and hairs, explaining how their unique properties affect the felting process. He provides a thorough account of the materials preparation, hat-making techniques, and the importance of several intricate processes including fulling, dyeing, and blocking. Notably, Thomson also discusses the historical evolution of hat fashions, the role of machinery in modern hat-making, and the chemistry involved in the felting process. Overall, the work aims to clarify the complexities of the hat-making trade, encouraging both new and seasoned hatters to innovate and improve their techniques for better craftsmanship.