Resources for the study of liturgical materials in the Syriac Monophysite tradition are quite sparse, particularly when compared to the number of resources available for other contemporary groups. Therefore, the publication of this manuscript containing a Syriac version of the “Liturgy of St. Athanasius” provides an important source increasing our understanding of the development of various liturgical practices and traditions. Baumstark presents the text of the manuscript, but includes a critical apparatus with readings from other manuscripts containing the same text. In his introduction to the text, Baumstark compares and contrasts this version with the various other versions of the liturgy and concludes that the primary difference in, and therefore the primary value of, this text is the peculiar forms of the prayers. The similarities and distinct differences between this form of the liturgy and the forms preserved in other traditions raise questions concerning source materials. Baumstark deftly navigates this complicated issue and offers his own conclusions. The editors present the Syriac text of the manuscript, including a critical apparatus containing variant readings from other sources, and a Latin translation of the text as well.