No theologian, we believe it can be confidently asserted, was so familiar with the life and history of the churches that have found a home in America, as was Dr. Schaff. His name was pre-eminently that which would have been given by an intelligent representative of any of the larger communions as that of the one scholar outside of his Church who best knew it. His rare intellectual activity, his unwearied habits of research, and his marvellous memory were aided by his constant personal contact with leaders of the various phases of religious thought, and his warm sympathy for what he deemed the most essential factors of religious life wherever found.