I do not propose in this paper to enter into any general inquiry about the best method of writing history. Such inquiries appear to me to be of no real value, for there are many different kinds of history which should be written in many different ways. A diplomatic, a military, or a parliamentary history, dealing with a short period or a particular episode, must evidently be treated in a very different spirit from an extended history where the object of the historian should be to describe the various aspects of the national life, and to trace through long periods of time the ultimate causes.