Between northern and southern Japan, it is not very easy to distinguish what influence the climates of the two regions had on their history. It is certain that northern Japan is inferior to southern Japan in climatic conditions, if we consider the impediments put on human activity there, on account of the intense cold during the winter. It is doubtful, however, whether the backwardness of the North in the forward march of civilisation can be solely attributed to its climatic inferiority. Even in the depth of winter, the cold in the northern provinces of Hon-to cannot be said to be more unbearable and unfit for the strenuous activity of the inhabitants, than that of the Scandinavian countries or of northeastern Germany. The principal cause of the retardation of progress in northern Japan lies rather in the fact that it is a comparatively recently exploited part of the Empire. Since the beginning of historic times, the Japanese have pushed their settlements more and more toward the north, so that the population in those regions has grown denser and denser. If this process had continued with the same vigour until today, the northern provinces might have become far more populous, civilised, and prosperous, than we see them now. Unfortunately for the North, however, just at the most critical time in its development, the attention of the nation was compelled to turn from inner colonisation to foreign relations. Besides, the subsequent acquisition of new dominions oversea made the nation still more indifferent to the exploitation of the less remunerative northern half of Hon-to. As to the climatic conditions of Hokkaido and Loochoo, it is needless to say that they are far different from that of the historic part of the Empire, and each of them needs special consideration. They have had, however, very little to do with the history of Japan. The same may also be said still more emphatically about Formosa, Saghalen, and Korea, though the influence of their climates on the destiny of future Japan will without doubt be immense; but as these regions do not come within the purview of my book, I can, without prejudice, omit further reference to them.