Copy of a secret and confidential letter from the General to Rear-Admiral Sir Thomas Louis, Bt., R,N., Pointing out the precarious position of the Army as a result of the attack on Rosetta following the advice tendered by Major Missett which he - with the concurrence of Sir John Duckworth and himself - felt bound to follow. Points out the precariousness of the supply position and asks for his opinion as to the advisability of staying in the country April 23rd 1807