In the *Dictionary of National Biography* Daniell is stated to have been born at Liverpool in 1818, but Johnston in his *Roll* gives his birth as on November 19th, 1819, at Salford. He became a member of the Royal College of Surgeons in 1841, and joined the medical service of the Army as Assistant Surgeon on November 19th, 1847. His service as Assistant Surgeon was spent in the unhealthy coast of West Africa, where he established for himself a reputation as a botanist of merit. He sent home observations on many economic plants, accompanied by specimens, one communication being on the Katemfé, or miraculous fruit of the Sudan, which was afterwards named *Phrynium Danielli*, Benn. Another memoir on the frankincense tree of West Africa led to the establishment of the genus *Daniella*, Benn, so named in compliment to the author. He returned to England in 1853, and was promoted Staff Surgeon (2nd Class). He next spent some time in the West Indies with the West India Regiment. In 1860 he was promoted Staff Surgeon in the 31st Foot, and proceeded to China with the expedition which took Pekin. He again visited the West Indies, returned in 1864 with broken health, and died at Southampton on June 26th, 1865. Publications:- *Medical Topography and Native Diseases of the Gulf of Guinea*, 8vo, 1849. *Notes on some Chinese Condiments obtained from the Xanthoxylaceoe*, 8vo, plate, 1862. *On the Cascarilla Plants of the West India and Bahama Islands*, 8vo, plate (the two last named were presented by Daniell to the Library of the College). His detached papers amount to twenty in various journals, for which see *Dict. Nat. Biog*.