the points at which the two epochs diverge. For the contemporary differs from the modern in this, that many of its facts cannot by us be definitely ascertained. The living do not give up their secrets with the candour of the dead; one key is always excepted, and a generation passes before we can ensure accuracy. Common report and outward seeming are bad copies of the reality, as the initiated know it. Even of a thing so memorable as the war of 1870, the true cause is still obscure; much that we believed has been scattered to the winds in the last six months, and further revelations by important witnesses are about to appear. The use of history turns far more on certainty than on abundance of acquired information.
Beyond the question of certainty is the
