How, then, shall one proceed in the writing of history in order to make sure of the indispensable quality of accuracy? Clearly, the first thing to be borne in mind is the necessity of getting information through channels which are as direct and immediate as possible. Just as in ascertaining the facts regarding an event of to-day it would be desirable to get the testimony of an eye-witness rather than an account after it had passed from one person to another, suffering more or less distortion at every step, so, in seeking a trustworthy description of the battle of Salamis or of the personal habits of Charlemagne, the proper course would be to lay hold first of all of whatever evidence concerning these things has come down from Xerxes's or Charlemagne's day to our own, and to put larger trust in this than in more recent accounts which have been played upon by the imagination of their authors and perhaps rendered wholly misleading by errors consciously or unconsciously injected into them. The writer of history must completely divest himself of the notion that a thing is true simply because he finds it in print. He may, and should, read and consider well what others like himself have written upon his subject, but he should be wary of accepting what he finds in such books without himself going to the materials to which these writers have resorted and ascertaining whether they have been used with patience and discrimination. If his subject is Lincoln, he should, for example, make sure above everything else, of reading exhaustively the letters, speeches, and state papers which have been preserved, in print or in manuscript, from Lincoln's pen. Similarly, he should examine with care all letters and communications of every kind transmitted to Lincoln. Then he should familiarize himself with the writings of the leading men of Lincoln's day, whether in the form of letters, diaries, newspaper and magazine articles, or books. The files, indeed, of all the principal periodicals of the time should be gone through in quest of information or suggestions not to be found in other places. And, of course, the vast mass of public and official records would be invaluable--the journals of the two houses of Congress, the dispatches, orders, and accounts of the great executive departments, the arguments before the courts, with the resulting decisions, and the all but numberless other papers which throw light upon the practical conditions and achievements of the governing powers, national, state, and local. However much one may be able to acquire from the reading of later biographies and histories, he ought not to set about the writing of a new book of the sort unless he is willing to toil patiently through all these first-hand, contemporary materials and get some warrant from them, as being nearest the events themselves, for everything of importance that he proposes to say. This rule is equally applicable and urgent whatever the subject in hand--whether the age of