There must be many errors of omission in this work, because the subject is too large to be treated of in two volumes in such way as to do justice to all the officers and men engaged. There were thousands of instances, during the rebellion, of individual, company, regimental and brigade deeds of heroism which deserve special mention and are not here alluded to. The troops engaged in them will have to look to the detailed reports of their individual commanders for the full history of those deeds. Mark Twain wrote: I had been comparing the memoirs with Caesar's Commentaries... I was able to say in all sincerity, that the same high merits distinguished both books clarity of statement, directness, simplicity, unpretentiousness, manifest truthfulness, fairness and justice toward friend and foe alike, soldierly candor and frankness, and soldierly avoidance of flowery speech. I placed the two books side by side upon the same high level, and I still think that they belonged there."