“Historical Pharmacopeias” is a collection of historical sources listing natural products and pharmaceutical preparations used in past societies. The collection features assemblages of products found in apothecaries’ inventories and other lists of medicaments in use from Europe, European imperial dominions, and other regions from antiquity to 1900. The goal is to present this collection in a form that is accessible to historians of medicine, science, and pharmacy, as well as medical researchers and biochemists studying natural products, that is to say medicinally powerful substances extracted from nature.