for communicating with Oubacha; for the necessity of commanding an ample range of pasturage, to meet the necessities of their vast flocks and herds, had separated this _ouloss_ from the Khan's head-quarters by an interval of eighty miles: and thus it was, and not from oversight, that it came to be thrown entirely upon its own resources. These had proved insufficient; retreat, from the exhausted state of their horses and camels, no less than from the prodigious encumbrances of their live stock, was absolutely out of the question: quarter was disdained on the one side, and would not have been granted on the other; and thus it had happened that the setting sun of that one day (the 13th from the first opening of the revolt) threw his parting rays upon the final agonies of an ancient _ouloss_, stretched upon a bloody field, who on that day's dawning had held and styled themselves an independent nation. Universal consternation was diffused through the wide borders of the Khan's encampment by this disastrous intelligence; not so much on account of the numbers slain, or the total extinction of a powerful ally, as because the position of the Cossack force was likely to put to hazard the future advances of the Kalmucks, or at least to retard, and hold them in check, until the heavier columns of the Russian army should arrive upon their flanks. The siege of Koulagina was instantly raised; and that signal, so fatal to the happiness of the women and their children, once again resounded through the tents--the signal for flight, and this time for a flight more rapid than ever. About one hundred and fifty miles ahead of their present position, there arose a tract of hilly country, forming a sort of margin to the vast, sea-like expanse of champaign savannas, steppes, and occasionally of sandy deserts, which stretched away on each side of this margin both eastwards and westwards. Pretty nearly in the centre of this hilly range, lay a narrow defile, through which passed the nearest and the most practicable route to the river Torgai (the further bank of which river offered the next great station of security for a general halt.) It was the more essential to gain this pass before the Cossacks, inasmuch as not only would the delay in forcing the pass give time to the Russian pursuing columns for combining their attacks and for bringing up their artillery, but also because (even if all enemies in pursuit were thrown out of the question) it was held by those best acquainted with the difficult and obscure geography of these pathless steppes--that the loss of this one narrow strait amongst the hills would have the effect of throwing them (as their only alternative in a case where so wide a sweep of pasturage was required) upon a circuit of at least five hundred miles extra; besides that, after all, this circuitous route would carry them to the Torgai at a point ill fitted for the passage of their heavy baggage. The defile