The fourth instalment of the first part of VolumeIII of Athanasius' Works continues the publication of documents on the Arian conflict started by Hans-Georg Opitz in 1934 and 1935. Following on from the third instalment, which ended with the Formula makrostichos, the fourth instalment now includes the four Sirmian formulae, the texts of the Synods of Rimini/ Seleukia/Constantinople 359/360 and the Synod of Alexandria 362 together with a German translation. A bibliography and index are appended to the fascicle.