Although this commentary, like everything written by Coke, was long accepted as a work of great value, its method is in reality entirely uncritical and unhistorical. The great lawyer reads into Magna Carta the entire body of the common law of the seventeenth century of which he was admittedly a master. He seems almost unconscious of the great changes accomplished by the experience and vicissitudes of the four eventful centuries which had elapsed since the Charter had been originally granted. The various clauses of Magna Carta are thus merely occasions for expounding the law as it stood, not at the beginning of the thirteenth century, but in his own day. In the skilful hands of Sir Edward, the Great Charter is made to attack the abuses of James or Charles, rather than those of John or Henry, which its framers had in view. In expounding the _judicium parium_, for example, he carefully explains many minute details of procedure before the Court of the Lord High Steward, and describes elaborately the nature of the warrants to be issued prior to the arrest of any one by the Crown; while, in the clause of Henry’s Charter which secures an open door to foreign merchants in England “unless publicly prohibited,” he discovers a declaration that Parliament shall have the sole power to issue such prohibitions, forgetful that the regulation of trade was an exclusive prerogative of the Crown with which Parliament had no right to interfere for many centuries subsequent to the reign of Henry III. (3) In 1680 Mr. Edward Cooke, barrister, published a small volume entitled _Magna Charta made in the ninth year of King Henry III. and confirmed by King Edward I. in the twenty-eighth year of his reign_. This contained a translation of Henry’s Magna Carta with short explanatory notes founded mainly on the commentary of Sir Edward Coke. In his Preface, Mr. Cooke declared that his object was to make the Great Charter more accessible to the public at large, since, as he said, “I am confident, scarce one of a hundred of the common people, know what it is.” (4) Sir William Blackstone’s _Introduction_ to his edition of the charters, published in 1759, as already mentioned, contains valuable information as to the documents he edits; but he explicitly disclaims all intention of writing a Commentary. He is careful to state “that it is not in his present intention, nor (he fears) within the reach of his abilities, to give a full and explanatory comment on the matters contained in these charters.”[316] ----- Footnote 316: Introduction, p. ii. ----- (5) The Hon. Daines Barrington published in 1766 his _Observations upon the Statutes from Magna Charta to 21 James I._ This book contains some notes on the Charter also founded chiefly upon Coke’s _Second Institute_; his original contributions are not of outstanding value.