"Although the feelings of the respectable citizens of London are decidedly loyal, yet it cannot but be known that there are, both in London, as well as the country, a set of desperate and abandoned characters who are anxious to avail themselves of any circumstance to create tumult and confusion. While all of any respectability in the city are vieing with each other to testify their loyalty on the occasion; from what I learn, it is the intention of some of the desperate characters above mentioned, to take the opportunity of making an attack on your Grace's person, on your approach to the Hall. Every exertion on my part shall be used to make the best possible arrangements in the City; and, at the same time, I feel that, should any violent attack be made in one quarter, any civil force alone might not be sufficiently effectual; and I should not be doing my duty, after what I have heard, did I not take the liberty of suggesting to your Grace the propriety of coming strongly and sufficiently guarded. "I probably may be considered as giving you needless trouble, but the respect which I, as well as every person who really wishes the welfare of the country, must have for your Grace, and the gratitude we owe you, has induced me to adopt this course. "I have, etc. "(Signed) JOHN KEY, "Lord Mayor Elect." Other communications to a similar effect were made to the Ministers; and in the evening of the 7th the following letter was received by the Lord Mayor, from Sir Robert Peel:-- "MY LORD, "I am commanded by the King to inform your Lordship, that his Majesty's confidential servants have felt it to be their duty to advise the King to postpone the visit which their Majesties intended to pay the City of London on Tuesday next. From information which has been recently received, there is reason to apprehend that, notwithstanding the devoted loyalty and affection borne to his Majesty by the citizens of London, advantage would be taken of an occasion which must necessarily assemble a vast number of persons by night, to create tumult and confusion, and thereby to endanger the properties and the lives of his subjects. It would be a source of deep and lasting concern to their Majesties were any calamity to occur on the occasion of their visit to the City of London, and their Majesties have therefore resolved, though not without the greatest reluctance and regret, to forego, for the present, the satisfaction which that visit would have afforded to their Majesties.