[ COPY OF GRAHAME OF KILLEARN'S LETTER ][ THE DUKE OF MONTROSE TO —— ][ No. III.—CHALLENGE BY ROB ROY. ][ No. IV.—LETTER ][ No. IVa.—LETTER. ][ No. V.—HIGHLAND WOOING. ][ No. VI—GHLUNE DHU. ][ EDITOR'S INTRODUCTION TO ROB ROY ][ ROB ROY ][ CHAPTER FIRST. ]