22nd.—The government bulletin of this morning contains a letter from Santa Anna, dated Mango de Clavo, 19th of July, informing the president, with every expression of loyalty and attachment to the government, that according to his desire he will set off this morning in the direction of Perote, "at the head of a respectable division." Various other assurances of fidelity from Victoria, from Galindo, etc., are inserted, with the remark that the Mexican public will thus see the uniformity and decision of the whole republic in favour of order, and especially will receive in the communication of his Excellency, General Santa Anna, an equivocal proof of this unity of sentiment, notwithstanding the assurances given by the rebels to the people, that Santa Anna would either assist them, or would take no part at all in the affair. It must be confessed, however, that his Excellency is rather a dangerous umpire.

The Governor Vieyra published a proclamation to-day, declaring "Mexico in a state of siege." It seems to me that we knew that already! Upon the whole, things are going on well for the government. Parties of pronunciados have been put down in various places. The wounded on both sides have been carried to the hospital of San Andrés. A battery is now planted against the palace, in the Calle de Plateros, where they are at least near enough to do more execution than before.

One circumstance worthy of notice has been published to-day. The rebels, as you may recollect, declared that they had permitted the president to leave the palace, on condition of his taking conciliatory measures, and that he had agreed to favour their pretensions. Now here is Bustamante's own letter, written in the palace, when surrounded by his enemies; a proof, if any were wanting, of his exceeding personal bravery, and perfect coolness in the midst of danger. There is something rather Roman in these few lines:

"Ministers,—I protest that I find myself without liberty and without defence, the guards of the palace having abandoned me. Under these circumstances, let no order of mine, which is contrary to the duties of the post I occupy, be obeyed. Since, although I am resolved to die before failing in my obligations, it will not be difficult to falsify my signature. Let this be made known by you to the Congress, and to those generals and chiefs who preserve sentiments of honour and fidelity.

"National Palace, July 15th, 1840.

"Anastasio Bustamante."

The following propositions are made to the government by the rebels:

"Article 1st. It not having been the intention of the citizen José Urrea, and of the troops under his command, to attack in any way the person of the president of the republic, General Anastasio Bustamante, he is replaced in the exercise of his functions.

"2nd. Using his faculties as president of the republic, he will cause the firing to cease on the part of the troops opposed to the citizen Urrea; who on his side will do the same.

"3rd. The president shall organize a ministry deserving of public confidence, and shall promise to re-establish the observance of the constitution of 1824, convoking a congress immediately, for the express purpose of reform.