The ennui produced by a long halt after a series of consecutive marches had by this time taken such a hold on me, that with delight I heard Omer Pacha's announcement of his intention to send a force with provisions for the town and garrison of Niksich, whose proximity to Montenegro placed them in the position of a beleaguered garrison, and rendered them dependent upon the government for the ordinary necessaries of life. For this duty Osman Pacha was detached, taking with him seven battalions and four guns, which were subsequently reinforced by an eighth battalion from Krustach. For the first three hours our route lay in the valley of Gasko, which looked green and fertile, though showing few signs of cultivation. The ruins of a church were the only antiquarian relics which I noticed on the march. At the extremity of the valley the pathway winds to the SE., having the rugged Piwa, looking bleak and bare, on the left, and the more wooded heights of Baniani on the right. The configuration of the hills, and the sharp outline of the country generally, combined with the indescribably wild and rocky character of some parts of the foreground, and the sloping grass banks in others, to produce a picture at once grand and picturesque; but it was a picture of which the eye soon wearied and the appreciation palled. There, as throughout the whole march to Niksich, the country abounds with the most magnificent defensible positions; natural parapets, whence a most destructive fire might be poured upon an advancing foe, and incapable of being turned by any flank movement; positions, in short, constructed for the enactment of a second Thermopylæ. No signs of humanity were to be found in that barren region. Here and there the carcass of a stray horse, which had died probably of pure inanition, and afforded a scanty meal to the birds and beasts of prey, was the only sign of aught that had ever beat with the pulse of life. Leaving the main body, I came up with a small party of engineer officers, employed in taking the angles on the line of march. The serious inconvenience resulting from the want of a good map of these countries is now much felt. True, it was partially removed by the existence of a map of Montenegro, including a portion of the Herzegovinian frontier, drawn by Major Cox[Q], R.E., and published by the Topographical Department, a copy of which I had presented to Omer Pacha, and which was much appreciated by him. Very properly, however, he proposes that the country shall be surveyed by Turkish officers, and a map constructed upon their observations. Its accuracy will be somewhat doubtful, if we may judge from the crude manner in which they set to work. The only instruments employed were prismatic compasses, with which they jotted down angles at all the salient points, an orderly dragoon counting his horse's paces in the intervening time, which was occasionally as much as twenty minutes.