The original manuscript for Paris in the 20th Century, which is kept in the city library, showed angry scribbling from the publisher.
“Unpleasant word,” wrote Hetzel. “Wrongly done. Especially for a start.” Another time the publisher commented, “No one will ever believe what you write.”
At one point Verne described a medical dissection in gory detail. “It is out of the question. It is shocking,” complained the publisher.
Around the World in 80 Days required careful reckoning, because the story was released in serial form. The count of the mileage and the tally of days fills the right margin. It all had to come out right for the story to work.
Jules Verne Museum