Frank Edward Brightman, 1911 Encyclopædia Britannica (1911)
“ The book is important, therefore, as the earliest liturgical collection on so large a scale, and as belonging to Egypt, where evidence for 4th-century ritual is scanty as compared with Syria. The rites form a link between those of the Egyptian Church Order (a 3rd- or early 4th-century development of the Hippolytean Canons, which are perhaps Egyptian of c. 260) and later Egyptian rites-marking the stage of development reached in Egypt by c. 350, while exhibiting characteristics of their own. I. The Mass has the Egyptian notes—a prayer before the lections, elsewhere unknown in the East ”
