This is a real curio of a work. I read it in a poorly formatted Kindle e-book version, which made it a little frustrating to follow. I've never actually come across a piece of 'criticism' like this. Percy Fitzgerald had been a companion of Dickens, having met him in Ireland whilst working in the legal profession and having eventually become a contributor for Dickens magazine Household Words. In 1914 he would publish his Memories of Charles Dickens, but prior to that volume he put together this literary oddity about one of Dickens most beloved works The Pickwick Papers.
What makes this work so unusual is that it attempts to mimic the format of a legal report, covering the fictional trial of Pickwick, who has been accused of breaking a promise to marry his landlady. In amongst copious amounts of quotation from the source text, Fitzgerald elucidates some of the factual material that Dickens may have been bringing to the work from his days as a court reporter and law clerk. Having a degree of experience in legal matters, Fitzgerald is also able to point out where Dickens knowledge of the British legal system is accurate and where it may stray a little from the true state of things.
Intriguingly at the end of the piece Fitzgerald begins to reverse the critical process of the work and rather than find the sources of Dickens fiction, looks toward how the fictional trial informed public knowledge of legal matters. A particularly telling detail in the latter part of the text is the fact that the OED is said to illustrate the legal term 'cognovit' with reference to the Bardell v. Pickwick trial.
If you're a Dickens completist then this is going to be required reading. However even for the casual reader of the great man's work, it is well worth a brief sojourn through Fitzgerald's curious close reading. For me it was most enjoyable to read the obvious affection with which Fitzgerald couldn't help but write about the man he still called Boz.