We found that affairs here had taken a very serious turn. On Saturday last Dervish Pashà, the Vali or Governor-General of Bosnia, had left to take the command in Herzegovina, where the revolt was making head. On Sunday—this country being now left without any competent head—the revolt broke out in Bosnia. The news, as may be imagined, produced great excitement here, and threw the Christian minority into a state verging on consternation. The old rumours of an approaching massacre once more gained credence. But the panic became universal last night, when flames were observed rising from the immediate neighbourhood of the new cathedral, and in the centre of the Christian quarter, amongst houses inhabited by the leading Christian merchants. The Governor, Hussein Pashà, by repute a weak and incapable man, hearing the guns and cannon—which are here the usual fire-signals—and seeing the conflagration, at once jumped to the conclusion that the anticipated outbreak was beginning; and instead of sending the troops—who in Serajevo supply the place of a fire-brigade—to put out the fire, kept them in barracks waiting for the light to reveal the supposed disturbers of the peace. Thus the fire—which in its origin was, as we learnt from the most authentic source, purely accidental, and so far from being the work of a Moslem fanatic, had actually originated in the house of a well-known Mahometan, a renegade detested by the Christians—was allowed to spread, and fifteen houses in the most flourishing quarter of Serajevo were reduced to ashes before the Pashà could be undeceived, or proper measures be taken to bring the flames under. The danger to the whole city was imminent, the houses being mostly of wood and plaster; and, indeed, Serajevo had been previously burnt down on four several occasions. Perhaps the motives which induced the Mahometans to lend active help to the Christians in conquering the flames were not altogether disinterested. Meanwhile, from the unfortunate quarter in which the conflagration had arisen, and from the electric state of the political atmosphere, it lay in the very nature of things that the origin of the disaster should be misrepresented, and that the majority of the Christian population took it for granted that it was the work of Moslem spite. Thus a purely accidental circumstance had added fuel to the general uneasiness, and to-day a panic prevailed among the Christians of Serajevo.