THE Manuscript from which I have edited this text of the Acts of the Apostles and the seven Catholic Epistles as well as the theological treatise which follows them, is numbered 154 in my Catalogue of the Arabic MSS. in the Convent of Saint Catharine on Mount Sinai (Studia Sinaitica, No. III.). It was among the first dozen books which in 1893 the monks, in obedience to the directions of their Archbishop, brought to me out of a little closet at the foot of the staircase leading to the room then assigned for our work¹. I had already affixed a label to this volume, Πράξεις τών ̉Αποστόλων καί αί καθολικαί ̉Επιστολαί, and was busy receiving the second instalment of books, when the late lamented Professor Bensly examined this one. He became greatly interested in its style and appearance, and with the permission of the Librarian, Father Galakteon, he carried it to his tent, and gave it to Mrs Burkitt. She made a transcription of the "Antilegomena," (II. Peter, II. and III. John, Jude,) and also, I believe, of a portion of the Acts. My sister, Mrs Lewis, photographed all the pages containing the Catholic Epistles, but only with partial success, as our dragoman flashed a magnesium light round our tent while we were changing the rolls, and spoilt the results of a whole morning's work. These photographs were amongst the films thus damaged, and though portions of them were legible, Mrs Burkitt did not think they would be of any use to her.

On my third visit to the Convent, in 1895, I was convinced, (all the