Farting, breaking wind, cutting the cheese, or gas. The English language has numerous words for flatulence and this is even before we devolve into the subcategories that make up the genre. Whatever you call it, farting is a taboo act, but it is also a source of fascination. It’s not for nothing that there is a popular children’s book series called Fart Squad or that the preview of the most recent installment of the Alvin and the Chipmunks dynasty led with the punchline, “Sorry, pizza toots.” Today farting is something for which we perfunctorily ask forgiveness, but in the past...