The flora homoeopathica: Or, illustrations and descriptions of the medicinal plants used as homoeopathic remedies. 2 vols.

Hamilton detailed the symptoms of poisoning, records of successful use of the plant, and a description of its homeopathic uses. Finely illustrated with hand-colored plates, mostly by Henry Sowerby and his sister Charlotte. Digital facsimile from Biodiversity Heritage Library at this link.