THE ANTIETAM AND FREDERICKSBURG -- PREFACE. -- CONTENTS. -- CHAPTER I. -- THE COMMENCEMENT OF THE CAMPAIGN -- CHAPTER II. -- SOUTH MOUNTAIN -- CHAPTER III. -- THE ANTIETAM -- CHAPTER IV. -- FREDERICKSBURG -- LIST OF MAPS. -- MARYLAND -- FIELD OF OPERATIONS IN VIRGINIA -- THE FIELD OF THE ANTIETAM -- THE FIELD OF FREDERICKSBURG -- APPENDIX A. -- COMMANDERS IN THE ARMY OF THE POTOMAC UNDER MAJOR-GENERAL GEORGE B. McCLELLAN -- APPENDIX B. -- ORGANIZATION OF THE ARMY OF NORTHERN VIRGINIA -- APPENDIX C. -- ORGANIZATION OF THE ARMY OF THE POTOMAC -- INDEX.