One Third Off — Text and Context

A Voice That Shifts Between Mock-Heroic and Colloquial

Cobb’s narrative voice is the book’s most distinctive feature. He adopts a mock-heroic tone when describing his own struggles, as when he weighs himself and records “a profound shock” as if it were a boxing match. Yet he frequently drops into a conversational, almost folksy register, addressing the reader directly: “The way I look at this thing is this way.” This shift is not random; it mirrors the book’s structure, moving from grand pronouncements to intimate confessions. In the opening chapter, he compares himself to historical figures like the Marquis of Cortona, but immediately undercuts the comparison with a joke about the marquis’s skin “clapboarded” in cold weather. The effect is a voice that is both learned and self-deprecating, never letting the reader forget that Cobb is aware of his own absurdity. This tonal flexibility keeps the prose lively, preventing the historical digressions from becoming dry.

Digressions as a Structural Principle

The book’s chapters are less a linear narrative than a series of digressions held together by the theme of weight loss. Cobb freely wanders from his own diet experiments to the history of dieting, from vinegar-drinking marquises to contradictory medical advice. In Chapter Three, he discusses “Liver-Eating Watkins and Others,” a title that promises a tangent and delivers one. The prose often mimics the meandering thought process of an amateur researcher: “I was pained to observe how rare it was for two experts… to agree upon a single essential element.” This structure reflects Cobb’s method—he tries various diets, consults authorities, and reports his findings with a mixture of skepticism and amusement. The digressions are not mere filler; they are the point. Cobb is as interested in the absurdity of human behavior as in his own waistline. The pace slows during historical passages, then quickens with personal anecdotes, creating a rhythm that keeps the reader engaged.

Recurring Motifs: The Body as Battleground

Cobb repeatedly frames his weight loss as a physical struggle, using martial and mechanical imagery. He calls himself the “Panting Champion” and refers to his body as a “box score.” The Marquis of Cortona is described as a “fine fat old butcher” who goes “merrily murdering” after losing weight. This language turns the body into a site of conflict, where the dieter fights against his own flesh. Cobb also uses nautical metaphors: the marquis’s loose skin might “go scudding before the gale” or “tack and go about.” These recurring images give the book a cohesive texture, tying together the personal and historical sections. They also underscore Cobb’s view of dieting as a comic, almost farcical endeavor. The body is not just a physical entity but a source of endless metaphorical play. This motif, combined with the shifting voice and digressive structure, makes One Third Off a uniquely entertaining work of humorous nonfiction.

Cobb’s book rewards readers who enjoy a leisurely, digressive style. The humor is dry and often learned, drawing on history and literature for its jokes. Pay attention to the chapter titles, which hint at the tangents to come. The narrative voice is the main event: a persona that is both authoritative and ridiculous. Cobb never takes himself too seriously, and that is the key to the book’s charm. Approach it as a comic monologue rather than a practical guide, and you will find plenty to enjoy.

I remember Irvin Cobb's lament in One Third Off — how a body holds its history in every fold, how the struggle to change it becomes a strange companionship. That same tender oddity lives in the slender tale of The Slim Princess — Story, Setting & Ideas; both books murmur that our shapes are quiet stories, patiently awaiting their telling.