As regards our own safety, and our means of repelling foreign aggression, and maintaining internal order and tranquillity, Lord Derby made the important and gratifying announcement, that both our army and navy are in a state of high efficiency, and adequate to all the multifarious calls upon them, arising out of our universally-extended empire. England herself dreams not of aggression in any quarter, or extended dominion, abundantly satisfied with what she possesses. She seeks only to protect her just rights and interests; and though in no wise apprehensive of aggression upon herself, but rather feeling assured of the continuance of peace, this latter consideration of itself justified, and even suggested, the propriety of _deliberately_ organising our own energies, and making them so promptly and effectively available as to place this country beyond the reach of aggression from any quarter. There is, however, no necessity for any increased military force, regular or irregular; and the Earl of Derby concluded this part of his speech by one of the happiest strokes conceivable. Without saying it in words, he invited foreign countries to contemplate our own institutions, and the great strength and happiness which they confer upon us; at the same time affording a faint and delicate intimation of the strength which we can put forth on an adequate occasion! In a few graceful sentences he alluded to the memorable demonstration in London on the 10th of April 1848: "My lords, upon many memorable occasions, and upon none more than in the course of the last three or four years, the people of this country have shown, in a manner to excite the wonder and admiration of foreign powers, that the peace and tranquillity of the kingdom may be safely intrusted to the loyalty of the people of England. I believe, my lords, that it is not the ability of her rulers--I am sure that it is not the multitude of her forces--that keeps this country in a state of tranquillity and contentment; but I must say that it is a due and frank appreciation, on the part of every class of her Majesty's subjects, of the inestimable value of those institutions under which they live, and a conviction that not merely the just prerogatives of the Crown, but the real liberties of the people, are best secured by these institutions!" We know not which most to admire, the perfect good taste, or the masterly tact and sagacity here displayed, in the expression of that which will be--perhaps has been--appreciated abroad, with many a royal sigh of acquiescence.