Gentlemen:—I have the honor to lay before you a letter I have received from Colonel Malmady on the subject of making our light horse in future more serviceable. I beg leave to recommend this subject to your serious consideration as being in our present circumstances of the utmost importance, and I shall only add that Colonel Malmady, who wishes to have a command in your cavalry, is an officer of great experience and of the most approve bravery, and has on all occasions manifested the greatest attachment to our virtuous cause.