New Guide to Health; or Botanic Family Physician by Samuel Thomson, first published in 1822, is a foundational work in American herbal medicine. Thomson, an herbalist and naturopathic physician, introduced the “Thomsonian System” of medicine, emphasizing the use of indigenous plants to treat various ailments. This system was a response to the prevailing medical practices of the time, which often relied on harsh treatments. Thomson’s approach was rooted in the belief that nature provided all the necessary remedies for healing.​

The book is structured to serve as a practical guide for families, detailing a comprehensive system of medical practice. It offers descriptions of various medicinal plants, including their properties and methods of preparation. Thomson provides instructions on how to administer these remedies effectively to cure diseases. This practical approach made the book an invaluable resource for households seeking to manage health and illness without relying solely on professional medical practitioners.​

In addition to the practical guide, the book includes narratives of several cases treated by Thomson, illustrating the application of his methods in real-life scenarios. These case studies serve to validate the efficacy of the Thomsonian System and provide readers with a deeper understanding of its application. Furthermore, the book contains a narrative of Thomson’s life and medical discoveries, offering insight into the experiences and motivations that led him to develop his system of medicine.​

New Guide to Health stands as a testament to the enduring value of traditional herbal medicine. Its emphasis on natural remedies and self-reliance in health care resonates with contemporary movements that advocate for holistic and sustainable health practices. By revisiting such works, we can appreciate the wisdom of past generations and the timeless principles of natural healing.