The present translation is based upon the text of the second Ger- man edition, published in 1924. Certain passages of no great interest to English readers have been omitted and a chapter dealing with more or less purely German controversies has been placed in an appendix. The comments on policy, however, in Part III, chapter vi, have been left as they appeared in But the author, who has most generously lent assistance at every stage of the translation, has written a special introduction in which he outlines his views on the problems which have emerged since that date. A note in the appendix gives the German equivalents to.
