Henry Bradshaw (scholar)

When he found that his official duties absorbed all his leisure he resigned his post, but continued to give his time to the examination of the manuscripts and early printed books in the library.

[2] In addition to his achievements in black-letter bibliography he threw great light on ancient Celtic language and literature by the discovery, in 1857, of the Book of Deer, a manuscript copy of the Gospels in the Vulgate version, in which were inscribed old Gaelic charters.

He made another find in the Cambridge library of considerable philological and historical importance; Cromwell's envoy, Sir Samuel Morland (1625–1695), had brought back from Piedmont manuscripts containing the earliest known Waldensian records, consisting of translations from the Bible, religious treatises and poems.

On this Morland had based his theory of the antiquity of the Waldensian doctrine, and, in the absence of the manuscripts, which were supposed to be irretrievably lost, the conclusion was accepted.

[2] He had a share in exposing the frauds of Constantine Simonides, who had asserted that the Codex Sinaiticus brought by Tischendorf from the Greek monastery of Mount Sinai was a modern forgery of which he was himself the author.