_June 1st._--The state of affairs with America becomes more and more alarming.[1] Grey told me the other night that he had had a long conversation with Dallas, whose tone was anything but reassuring as to the prospect of peace; and yesterday I met Thackeray, who is just returned from the United States. He thinks there is every probability of the quarrel leading to war, for there is a very hostile spirit, constantly increasing, throughout the States, and an evident desire to quarrel with us. He says he has never met with a single man who is not persuaded that they are entirely in the right and we in the wrong, and they are equally persuaded if war ensues that they will give us a great thrashing; they don't care for the consequences, their riches are immense, and 200,000 men would appear in arms at a moment's notice. Here, however, though there is a great deal of anxiety, there is still a very general belief that war cannot take place on grounds so trifling between two countries which have so great and so equal an interest in remaining at peace with each other. But in a country where the statesmen, if there are any, have so little influence, and where the national policy is subject to the passions and caprices of an ignorant and unreasoning mob, there is no security that good sense and moderation will prevail. Many imagine that matters will proceed to the length of a diplomatic rupture, that Crampton will be sent away and Dallas retire in consequence, and that then by degrees the present heat will cool down, and matters be amicably arranged without a shot being fired. I feel no such confidence, for if diplomatic intercourse ceases numerous causes of complaint will arise, and as there will be no means left for mutual and friendly explanation and adjustment, such causes will be constantly exaggerated and inflamed into an irreconcileable quarrel. Matters cannot long go on as they now are without the public here becoming excited and angry, and the press on both sides insolent, violent, and provoking, and at last, going on from one step to another, we shall find ourselves drifted into this odious and on both parts suicidal contest, for there is not a blow we can strike at America and her interests that will not recoil on us and our own. It has often been remarked that civil wars are of all wars the most furious, and a war between America and England would have all the characteristics of a civil and an international contest; nor, though I have no doubt that America is in the wrong, can I persuade myself that we are entirely in the right on either of the principal points in dispute. We have reason to congratulate ourselves that the Russian war is over, for if it had gone on and all our ships had been in the Baltic, and all our soldiers in the Crimea, nothing would have prevented the Americans from seizing the opportunity of our hands being full to bring their dispute with us to a crisis.