I know it is commonly said that such things belong to a past age—that they were the legitimate product of ignorance, and have died out with the education of the masses. In other words, we know more than our ancestors did about the phenomena of nature, and therefore by no means accept, as they did—good, superstitious souls!—the appearance of a comet blazing in the heavens, or the heaving of an earthquake under our feet, as events having moral significance. With the aid of electricity or steam we perform miracles every day of our lives, such as, no doubt, would have created equal wonder and fear for the general stability of the world not many generations ago.