Highlanders. The cavalry lines are nearer to you below, and are some way in advance of the Highlanders, but nearer to the town than the Turkish redoubts. The valley is crossed here and there by small waves of land. On your left the hills and rocky mountain ranges gradually close in towards the course of the Tchernaya, till at three or four miles’ distance from Balaklava, the valley is swallowed up in a mountain gorge and deep ravines, above which rise tiers after tiers of desolate whitish rock, garnished now and then by bits of scanty herbage, and spreading away towards the east and south, where they attain the Alpine dimensions of the Tschatir Dugh. It is very easy for an enemy at the Belbek, or in command of the road of Mackenzies’s farm, Inkermann, Simpheropol, or Bakshiserai, to debouch through these gorges at any time upon this plain from the neck of the valley, or to march from Sebastopol by the Tchernaya, and to advance along it towards Balaklava, till checked by the Turkish redoubts on the southern side, or by the fire from the French works on the northern side--_i.e._, the side which, in relation to the valley to Balaklava, forms the rear of our position. It was evident enough that Menschikoff and Gortschakoff had been feeling their way along this route for several days past, and very probably at night the Cossacks had crept up close to our picquets, which are not always as watchful as might be desired, and had observed the weakness of a position far too extended for our army to defend, and occupied by their despised enemy, the Turks. At half-past seven o’clock this morning, an orderly came galloping in to the head-quarters camp from Balaklava, with the news, that at dawn a strong corps of Russian horse, supported by guns and battalions of infantry had marched into the valley, and had already nearly dispossessed the Turks of the redoubt No 1, (that on Canrobert’ Hill, which is farthest from our lines), and that they were opening fire on the redoubts Nos. 2, 3, and 4, which would speedily be in their hands unless the Turks offered a stouter resistance than they had done already.