No history of the conquest of Peru, founded on original documents, and aspiring to the credit of a classic composition, like the "Conquest of Mexico" by Solis, has been attempted, as far as I am aware, by the Spaniards. The English possess one of high value, from the pen of Robertson, whose masterly sketch occupies its due space in his great work on America. It has been my object to exhibit this same story, in all its romantic details; not merely to portray the characteristic features of the Conquest, but to fill up the outline with the coloring of life, so as to present a minute and faithful picture of the times. For this purpose, I have, in the composition of the work, availed myself freely of my manuscript materials, allowed the actors to speak as much as possible for themselves, and especially made frequent use of their letters; for nowhere is the heart more likely to disclose itself, than in the freedom of private correspondence. I have made liberal extracts from these authorities in the notes, both to sustain the text, and to put in a printed form those productions of the eminent captains and statesmen of the time, which are not very accessible to Spaniards themselves. M. Amedee Pichot, in the Preface to the French translation of the "Conquest of Mexico," infers from the plan of the composition, that I must have carefully studied the writings of his countryman, M. de Barante. The acute critic does me but justice in supposing me familiar with the principles of that writer's historical theory, so ably developed in the Preface to his "Ducs de Bourgogne." And I have had occasion to admire the skilful manner in which he illustrates this theory himself, by constructing out of the rude materials of a distant time a monument of genius that transports us at once into the midst of the Feudal Ages,-and this without the incongruity which usually attaches to a modernantique. In like manner, I have attempted to seize the characteristic expression of a distant age, and to exhibit it in the freshness of life. But in an essential particular, I have deviated from the plan of the French historian. I have suffered the scaffolding to remain after the building has been completed. In other words, I have shown to the reader the steps of the process by which I have come to my conclusions. Instead of requiring him to take my version of the story on trust, I have endeavored to give him a reason for my faith. By copious citations from the original authorities, and by such critical notices of them as would explain to him the influences to which they were subjected, I have endeavored to put him in a position for judging for himself, and thus for revising, and, if need be, reversing, the judgments of the historian. He will, at any rate, by this means, be enabled to estimate the difficulty of arriving at truth amidst the conflict of testimony; and he will learn to place little reliance on those writers