This wish was not to be gratified, for before Colonel Stanton's Commission was dissolved orders came for him to hand over his officers and men to Colonel--now Field-Marshal Sir Lintorn--Simmons, for the purpose of settling the boundary in Armenia, where a dispute had arisen about the course of the river Aras, the ancient Araxes. Gordon, who had now had two and a half years of foreign service without a break, did not relish this task, and even went to the expense of telegraphing for permission to exchange; but this effort was in vain, for the laconic reply of the Commander-in-Chief was: "Lieutenant Gordon must go." If Gordon had under-estimated the time required for the Bessarabian delimitation, he slightly over-estimated that for the Armenian, as his anticipated two years was diminished in the result to twenty-one months. He left Constantinople on 1st May 1857 on board a Turkish steamer, _Kars_, bound for Trebizonde. The ship was overcrowded with dirty passengers, and the voyage was disagreeable, and might have been dangerous if the weather had not proved exceptionally favourable. On arriving at Trebizonde horses had to be engaged for the ten days' journey across the 180 miles of difficult country separating that port from Erzeroum, the Armenian capital. The total caravan of the English and French Commissioners--the latter being Colonel Pelissier, a relative of the Marshal--numbered ninety-nine horses; and the Turkish Commissioner, being unable to obtain any money from his Government, seized the horses necessary for his journey in a manner that first opened Gordon's eyes to the ways of Pashas. He stopped on the road every caravan he met, threw off their goods, put on his own, and impounded the animals for his journey. After a brief stay at Erzeroum--which Gordon describes as a very pretty place at a distance, but horribly dirty when entered, and where there are eight or nine months of very hard winter--the Commission passed on to Kars, which became its headquarters. The heroic defence of that fortress was then recent, and it is still of sufficient interest as a military episode to justify the quotation of the evidence Gordon, with his characteristic desire to be well informed, collected on the spot while the events themselves were fresh. For convenience' sake, his remarks on Kars and the whole campaign are strung together here, although they appeared in several letters:--