This 6-page letter details the experiences and adventures of an unidentified British former naval surgeon who was in Oahu in 1845 after several years of traveling (apparently it had been many years since he had written home). The author starts with his time in Peru where he served in the Peruvian Army under President Augustin Gamarra in his offensive against the armies of Chile and Bolivia; he also talks about Antonio de la Fuente. He details his experience in the army, battles fought, the harsh conditions, famine, bad weather, treating wounded soldiers, etc. He also describes in some detail the cities of Lima, Arequipa and Callao, Peru. The author left Callao on a ship for Monterey, California where he was appointed "Physician General" of the army by Juan Bautista Alvarado. After four years in California, the author joined a French vessel on a journey to Kamchatka and Siberia; he describes in detail his experiences there as well as the harsh conditions met by the crew. The author then went to Oahu and most recently had been appointed surgeon to the British ship Emma. The letter ends with a list of greetings to family and friends back in England. The letter is incomplete and unsigned.