See, in the Appendix to the Acts of Chalcedon, the confirmation of the Synod by Marcian, (Concil. tom. iv. p. 1781, 1783;) his letters to the monks of Alexandria, (p. 1791,) of Mount Sinai, (p. 1793,) of Jerusalem and Palestine, (p. 1798;) his laws against the Eutychians, (p. 1809, 1811, 1831;) the correspondence of Leo with the provincial synods on the revolution of Alexandria, (p. 1835 - 1930.)