The only consequence that came of the parliamentary scare was that Hobbes could never afterwards get permission to print anything on subjects relating to human conduct. The collected edition of his Latin works (in two quarto volumes) appeared at Amsterdam in 1668, because he could not obtain the censor's licence for its publication at London, Oxford or Cambridge. Other writings which he had finished, or on which he must have been engaged about this time, were not made public till after his death--the king apparently having made it the price of his protection that no fresh provocation should be offered to the popular sentiment. The most important of the works composed towards 1670, and thus kept back, is the extremely spirited dialogue to which he gave the title _Behemoth: the History of the Causes of the Civil Wars of England and of the Counsels and Artifices by which they were carried on from the year 1640 to the year 1660_.[21] To the same period probably belongs the unfinished _Dialogue between a Philosopher and a Student of the Common Laws of England_ (_E.W._ vi. 1-160), a trenchant criticism of the constitutional theory of English government as upheld by Coke. Aubrey takes credit for having tried to induce Hobbes to write upon the subject in 1664 by presenting him with a copy of Bacon's _Elements of the Laws of England_, and though the attempt was then unsuccessful, Hobbes later on took to studying the statute-book, with _Coke upon Littleton_. One other posthumous production also (besides the tract on Heresy before mentioned) may be referred to this, if not, as Aubrey suggests, an earlier time--the two thousand and odd elegiac verses in which he gave his view of ecclesiastical encroachment on the civil power; the quaint verses, disposed in his now favourite dialogue-form, were first published, nine years after his death, under the title _Historia ecclesiastica_ (_L.W._ v. 341-408), with a preface by Thomas Rymer.