To succeed to the vacancies thus created, Captain John Thomas Jones, an officer of undoubted ability and military experience, was brought from Sicily, and on the 1st January commissioned to hold both appointments.[155] Upon him, therefore, devolved the difficult task of arranging and directing the details of the new organization both at home and abroad, and of carrying into effect a general system of drill and discipline.[156] In this duty he continued until July, 1808, when, ordered on a particular service to the Asturias, he resigned the staff rank. From the time of the appointment of Captain J. T. Jones, the Adjutant was permanently stationed at the head-quarters at Woolwich, and his office also was established there. ----- Footnote 155: ‘London Gazette,’ 20th to 24th January, 1807. Footnote 156: ‘United Service Journal,’ ii., 1843, p. 110. ‘Jones’s Sieges,’ ii., note 38, p. 389, 2nd edit. ----- Early in the year an expedition was sent against Chili under Major-General Crawford, accompanied by a sergeant and ten artificers under Captain J. Squire, R.E. Instead of proceeding to Chili, counter orders were received, and Captain Squire and his eleven men sailed with the force to Buenos Ayres. Arriving at Monte Video on the 14th June, they were accordingly landed and took part in the disastrous attack on Buenos Ayres, in which all the artificers were taken prisoners, and so remained until January, 1808, when they quitted with the force under General Whitelocke. On the 6th March, Major-General Frazer, at the head of a small armament, sailed from Messina to dispossess the Turks of Egypt. To this force were attached, under Captain J. F. Burgoyne, royal engineers, four of the military artificers furnished from the detachment in Sicily, who embarked on the 19th February. Having in due time landed at Alexandria, they served at the capture of that city, also in the attack of Rosetta, and in the retreat to Alexandria. In September following these four artificers rejoined the party at Messina. In the meantime the detachment at Messina was reinforced by a sergeant, one corporal, and eighteen privates of the Gibraltar companies, under Lieutenant George J. Harding, R.E., who embarked at the Rock on the 14th April. With the exception of the non-commissioned officers, this party was composed of irreclaimable drunkards, worthless alike as artificers or soldiers. From the inefficiency of these men, the Maltese war company was ordered to furnish its contingent for service in Sicily, and accordingly a detachment of one sergeant—Evan Roberts—one corporal, and twenty-nine artificers, embarked at Malta on board the ‘Charlotte’ transport on the 23rd, and landed at Messina on the 30th July. In the autumn following, the whole of the party with two men of the royal military artificers as foremen, were detached to Augusta and Syracuse, to be employed on the works under sergeant Roberts.