Dickens opens 'Mudfog and Other Sketches' with a town portrait that immediately establishes its comic method: Mudfog is 'a pleasant town—a remarkably pleasant town—situated in a charming hollow by the side of a river,' yet the river's gifts are 'pitch, tar, coals, and rope-yarn' and a 'pretty steady influx of drunken bargemen.' The narrator's deadpan praise of damp as salubrious and the town-hall as a 'combination of the pig-sty and tea-garden-box orders' sets the tone for the satirical sketches that follow. The collection moves between mock reports of the Mudfog Association for the Advancement of Everything—complete with absurd sections like 'Umbugology and Ditchwaterisics'—and shorter pieces such as 'The Pantomime of Life' and 'Some Particulars Concerning a Lion,' all sharing a fondness for ironic catalogues and deflating pretension.

The Town as Character and Caricature

The opening sketch, 'Public Life of Mr. Tulrumble,' establishes Mudfog as a place where water 'comes oozing down the streets and tumbling over the fields' in winter but 'will dry up, and turn green' in summer—a detail that Dickens uses to mock local pride. The narrator insists that damp is healthy because 'plants thrive best in damp situations, and why shouldn’t men?' This logical fallacy recurs throughout the collection: arguments are built on false analogies and circular reasoning. The town-hall's architecture is praised for placing 'a large window on one side of the door, and a small one on the other,' a joke that undercuts any claim to classical beauty. Dickens's method is to let the townspeople's own boasts condemn them, as when they assert that 'there exists not a finer race of people on the face of the earth'—a claim the narrator immediately calls 'an indisputable and veracious contradiction of the vulgar error.' The reader is left to enjoy the gap between what is said and what is shown.

The Mudfog Association: Science as Spectacle

The two 'Full Report' sections parody the proceedings of learned societies. Dickens invents sections such as 'Zoology and Botany,' 'Anatomy and Medicine,' and 'Mechanical Science,' each populated by savants with names like Professor Woodensconce and Mr. Slug. The reports mimic the dry, formal language of minutes and abstracts, but the content is deliberately absurd. For instance, one paper recommends a plaster 'as a preservative against sea-sickness,' which Mr. Slug then 'cut it up into small portions, and is now sticking it over himself in every direction.' The comedy lies in the contrast between the pompous presentation and the trivial or nonsensical subject matter. Dickens also satirizes the association's obsession with classification: the supplementary section 'E. Umbugology and Ditchwaterisics' suggests that any nonsense can be given a pseudo-scientific label. The structure of these sections—with numbered headings and sub-sections—mimics the very order that the content subverts.

The Steamer Voyage: A Microcosm of Discomfort

One of the most sustained comic sequences is the diary-like account of a steamer voyage, included within the second association report. The narrator records events by time-stamp, noting that 'the machinery always appears to be exactly under his pillow' and that a steamer 'always carries a little storm with it.' The voyage becomes a catalogue of miseries: Professor Woodensconce darts 'from his shelf head foremost' and runs 'wildly into the ladies’ cabin,' while Mr. Slug's plaster proves 'of no avail.' Dickens uses the incremental repetition of time entries to build a sense of worsening ordeal. The detail that 'the gravy soup for lunch was injudicious' and that 'we lost a great many passengers almost immediately afterwards' is a darkly comic understatement. The passage culminates in the image of Professor Grime calling for 'mutton-chops—and smile' while others suffer, a pointed jab at the lack of fellow-feeling among the learned.

Shorter Sketches: Pantomime, Lions, and Letters

The collection's latter half includes pieces that extend the satirical range. 'The Pantomime of Life' draws an extended analogy between everyday London life and the conventions of pantomime, suggesting that 'the whole of the court of Chancery is nothing but a comic song.' 'Some Particulars Concerning a Lion' presents a social lion—a celebrated person—through a series of ironic observations about how society fawns over notoriety. 'Mr. Robert Bolton' and 'Familiar Epistle from a Parent to a Child' shift to more personal satire: the former sketches a character whose self-importance is punctured by small details, while the latter adopts the voice of a parent writing to a child with absurdly formal advice. These shorter pieces share the collection's structural habit of using lists, mock-formal addresses, and sudden shifts in register. The 'Familiar Epistle' in particular parodies the didactic letter genre by inflating trivial instructions into grand moral pronouncements.

Throughout these sketches, Dickens's early comic voice is already fully formed: he relies on the accumulation of incongruous detail, the mock-heroic treatment of the mundane, and a narrator who maintains a straight face while the world he describes becomes increasingly ridiculous. Readers will find that the collection rewards attention to its structural patterns—the way lists, time-stamps, and section headings are used to create comedy from order itself. The Mudfog Association sketches, in particular, anticipate the satirical societies that would appear in later works like The Pickwick Papers, and the town of Mudfog itself stands as a prototype for the many fictional locales Dickens would go on to populate.