Since it pleases many readers to insert Greek words with their own hand, and in their own fashion, and these in ancient Codices are very few, and the accents are very difficult to mark in printing he determined that spaces should be left for the purpose.
"Fine Books"
Alfred W. Pollard
Further, we know nothing of the hands into which the books fell; nor of the Codices which have furnished such a variety of readings, nor whether, perchance, there were not many other variations in other copies.
"Theological Essays"
Charles Bradlaugh
Ark: desk on pattern of, 297 armarium: in Ulpian library, 20; described by Nibby, 37; to contain Codices, ibid.
"The Care of Books"
John Willis Clark