Examples from the Web for harnack
Harnack and others would place it later, perhaps in the 3rd century.
Harnack was gradually working his way to a new plane of thought.Old-Time Makers of Medicine|James J. Walsh
Elfreda Flood addressed Harnack, apparently resuming an interrupted conversation.The Intrusions of Peggy|Anthony Hope
According to Harnack, it is an extract from the Gospel of the Egyptians.
And the Bible was open to all Christians, as Harnack has brilliantly demonstrated in a recent publication.The Influence of the Bible on Civilisation|Ernst Von Dobschutz