The Liber comprises copies by a professional scribe of transcripts by Hare of royal charters, letters patent and other documents granting and confirming the University's privileges, partly from the University's records, but chiefly from those of central government in the Tower. The documents are arranged by reign, King Arthur to Queen Elizabeth. Notes by Registrary Romilly, Vice-Chancellors Ashton and Parris and pasted-in lists of various kinds attempt to deal with the fact that both the contents and the deployment of the contents varies from set to set. Comparison suggests that A, the fine presentation copy, is derived from B, while C contains the fruit of further labour, but C is a fairer copy than B. It is suggested that there might have been a set D which was Hare's working copy from which A, B and C were taken with due exercise of selection, carelessness or conceivably censorship.