The question of the acquisition of territory is again comparatively easy of analysis. All that it requires is for the teacher to show to his class that it was the “manifest destiny” of the nation to acquire, step by step, all the land lying south and west of the original limits of the country as far west as the Pacific Ocean. Whether the nation was wise in going beyond the confines of the continent in the acquisition of territory may be left till a later period for discussion. Finally, there is the question as to the position which the United States should take in cases of dispute between the European nations. Here again the teacher should be prepared to show that self-preservation required that the United States should assume a position of absolute neutrality, that it was equally necessary, on the other hand, at least in the early years of the nineteenth century, that we demand that the European nations refrain from interfering in the affairs of America. Coming now to the study of the specific events which illustrate these principles, the teacher will be ready to develop and the class will be ready to appreciate the series of events which begin with Washington’s Proclamation of Neutrality, which are involved in the disputes with England which were settled temporarily by the Jay Treaty and later by the War of 1812 and the Treaty of Ghent. Next the negotiations with Spain concerning the right of entry and deposit at the mouth of the Mississippi and the later negotiations with France concerning the purchase of Louisiana may be developed. Finally in this analysis the class will find the key to that series of proclamations and messages which begin with Washington’s Farewell Address, which proceed through the messages of Adams and Jefferson, which end with Monroe’s message of December, 1823, commonly known as the Monroe Doctrine. When all this is done, the well-equipped teacher will be ready to discuss briefly with his class the later diplomatic history of the country, the gradual modification of the principles for which Washington, Jefferson, John Quincy Adams and Monroe contended, but he will find to his surprise that until the very last years of the nineteenth century little change was made in the whole system.