Born in South Australia in 1859 he was educated at Hahndorf College and graduated from the University of Adelaide. He then came to England, entered Queen's College, Birmingham, and acted as demonstrator of physiology at Mason's Science College in that city. After taking out postgraduate courses in Dublin and at St Bartholomew's Hospital, London, he was appointed assistant physician and resident pathologist at the Birmingham General Hospital, assistant surgeon at the Jaffray Hospital, Birmingham, and resident medical officer to the Birmingham Workhouse. Returning to South Australia, he acted as health officer at Port Adelaide, 1895-97. He then settled in general practice at Hamilton Street, Hokitika, on the west coast of the South Island, New Zealand, and was surgical superintendent at the Westland County Hospital, 1897-1914. He served with the New Zealand Medical Corps 1914-17, and was torpedoed in the troopship *Marquette* in the Ægean Sea. He went back to Hokitika after the war, and died there sometime before February 1939. Teichelmann was a mountaineer. He was elected a member of the London Alpine Club in 1903, was president of the New Zealand Alpine Club in 1936-37, and Mount Teichelmann is named after him. Publications: Case of peritonitis after parturition. *Lancet*, 1891, 2, 1276. Notes of case of gonorrhoeal salpingitis. *Austral med Gaz* 1892, 11, 259. Notes of a case of (?) ectopic gestation. *Intercolon quart J Med Surg*, Melbourne, 1895, 2, 151.