“Formulary and Descriptive Catalogue of Their Fluid and Solid Extracts with a Complete Botanical Index,” published in 1871 by Burrough Brothers, serves as a comprehensive reference for herbal medicine practitioners. This work meticulously details a wide array of plant-based extracts, offering insights into their preparation, medicinal properties, and applications.​

The catalogue is organized to provide clear descriptions of each extract, including its botanical origin, therapeutic uses, and dosage recommendations. It serves as an invaluable resource for pharmacists, herbalists, and medical professionals seeking to understand the nuances of plant-based remedies. The inclusion of a complete botanical index further enhances its utility, allowing readers to easily locate specific herbs and their associated extracts.​

Through this publication, Burrough Brothers contribute to the preservation and dissemination of herbal knowledge, bridging traditional practices with emerging scientific understanding. The work reflects a commitment to advancing the field of herbal medicine by providing standardized information that supports informed decision-making in therapeutic contexts.​

This catalogue stands as a testament to the enduring value of herbal medicine, offering a structured and detailed approach to understanding the diverse applications of plant extracts in healing practices.