I have usually followed Professor Willis in his account of the Minster, and my obligations to his excellent works are general and continuous.
Professor Willis made careful and extensive observations of the Crypt and other parts of the Minster during the restoration, which gave him opportunities for investigation now impossible. He also brought to these observations a learning and sagacity probably greater than those of any other writer on English Gothic Architecture, and his little book remains the standard work on the history of the Minster.
I regret that I have been unable to agree with several of the theories of that most enthusiastic and diligent writer, Mr John Browne, or even to discuss them as I should have liked; but his books must always be of great value to every one interested in the history of York. I am also indebted to Canon Raine's excellent works and compilations; to Mr Winston for his remarks on the glass in the Minster; and to Professor Freeman for his interesting criticisms of the fabric generally.