Now if Barbicane was a great founder of shot,Nicholl was a great forger of plates; the one cast night and day at Baltimore, the other forged day and night at Philadelphia. As soon as ever Barbicane invented a new shot, Nicholl invented a new plate; each followed a current of ideas essentially opposed to the other.Happily for these citizens, so useful to their country,a distance of from fifty to sixty miles separated them from one another, and they had never yet met.Which of these two inventors had the advantage over the other it was difficult to decide from the results obtained. By last accounts, however, it would seem that the armor-plate would in the end have to give way to the shot; nevertheless, there were competent judges who had their doubts on the point.