Claudius Aelianus
Not content with scientific works, Gessner was also active as a linguist and bibliographer, putting forth in 1555 his book entitled "Mithridates. De differentiis linguarum [...]", an account of about 130 known languages, with the "Lord's Prayer" in twenty-two languages. He also produced edited works of a number of classical authors ("see Edited works"), including Claudius Aelianus (1556) and Marcus Aurelius (1559).