Investigators of the past are naturally inclined to overestimate the value of any new sources of information opened by their own diligence or sagacity of research, and a little of this feeling is perceptible in Mr. Bancroft's Preface; but, after all, we apprehend that the new evidence he has so diligently collected will not shake the deliberate verdict already passed alike upon men and events. Here and there a gleam is thrown upon some single incident, or the motives and conduct of a particular actor; but the general lights and shadows of the historical landscape remain undisturbed. The statements and the views of Marshall and Sparks are substantially sustained. The patriotic American will not regret to see that Mr. Bancroft's investigations and conclusions lead him to exalt Washington in comparison with the soldiers and civilians who stood around him; and the reader of his pages will have fresh cause to admire, not merely the firmness and self-command of that illustrious man, but his abilities as a commander and a statesman. We have especially to thank Mr. Bancroft for the distinctness with which he shows how much the success of the Northern army was due to Washington's disinterested advice. His high praise of the commander-in-chief sometimes glances aslope, and lights in the form of censure of some of his subordinate officers; and we should not be surprised if some of his strictures provoked replies and led to controversies. Some of those whom he criticises have left descendants, and those who have left no descendants have partisans who are jealous of the fame of their favorites, and will not lightly allow a leaf of their laurels to be blighted. During the period embraced by this volume the constitutions of several of the States were formed, and the Articles of Confederation were adopted which gave to the several States a semblance of unity, and smoothed the path to the more perfect union which was established ten years later. These events present themes peculiarly congenial to Mr. Bancroft's powers of brilliant generalization and rapid condensation, and tempt him into that field of discursive reflection where he is fond of lingering, and where we follow him always with interest, and generally with assent. We quote with peculiar pleasure the following observations from the fifteenth chapter, on the constitutions of the several States of America, as being sound in substance and happy in expression:--