"M' '` MAHON, SIR ARTHUR Henry (1862-), British soldier and administrator, was born Nov. 28 1862, the son of Gen. C. A. M ` Mahon, F.R.S. He was educated at Haileybury and afterwards entered Sandhurst, where he obtained a sword of honour in 1882. In 1883 he joined the army, and in 1885 was appointed to the Indian Staff Corps and entered the Punjab frontier force. In 1890 he joined the Indian Political Department, and after acting as political agent in various small states was in 1901 appointed revenue and judicial commissioner in Baluchistan. From 1903 to 1905 he was commissioner in Seistan, also acting as arbitrator on the boundary question between Persia and Afghanistan in Seistan. In 1906 he received the K.C.I.E. From 1905 to 1911 he was agent and chief commissioner in Baluchistan, and from 1911 to 1914 Foreign Secretary to the Government of India. He was appointed Master of Ceremonies to King George V. during his visit to India (1912) and in 1914 became first High Commissioner for Egypt under the British Protectorate. He retired from this office in 1916 and was created G.C.M.G.