Note 1 — Chapter IX · BLASS AND FLINDERS PETRIE

We cannot doubt [writes Dr. Petrie] that such was the course of growth when we look at the logia. Those collections of brief sayings could hardly have come into existence if full narratives and sufficient standards of information in the Gospels were already circulating. They belong essentially to a preparatory age, when records were in course of compilation. But, once written out, they naturally survived side by side with the Gospels, which had only used a portion of their material.1