(ORIGINAL.)
Head-quarters, 30th October, 1780.
It is impossible, my dear marquis, to desire more ardently than I do, to terminate the campaign by some happy stroke; but we must consult our means rather than our wishes, and not endeavour to better our affairs by attempting things which, for want of success, may make them worse. We are to lament that there has been a misapprehension of our circumstances in Europe; but to endeavour to recover our reputation, we should take care that we do not injure it more. Ever since it became evident that the allied arms could not co-operate this campaign, I have had an eye to the point you mention, determined, if a favourable opening should offer, to embrace it; but, so far as my information goes, the enterprise would not be warranted; it would, in my opinion, be imprudent to throw an army of ten thousand men upon an island against nine thousand, exclusive of seamen and militia. This, from the accounts we have, appears to be the enemy's force. All we can do at present, therefore, is to endeavour to gain a more certain knowledge of their situation, and act accordingly. This I have been some time employed in doing, but hitherto with little success. I shall thank you for any aids you can afford. Arnold's flight seems to have frightened all my intelligencers out of their senses. I am sincerely and affectionately yours.