“…As it descends the aqueduct it increases in thickness and strength which reaches a maximum in density and tough-ness as it approaches the stylomastoid foramen. When the Fallopian canal is explored for compression and the facial sheath slit, the nerve laterally herniates through the incision (Ballance & Duel, 1932;Morris, 1938;Cawthorne, 1951;Kettel, 1947;Sullivan & Smith, 1950), and is seen to be markedly congested and swollen to twice its normal size (Hall, 1951). This process is particularly marked in the lower third of the canal.…”