If Great Britain was only prepared to convince the world of her strength in steam ships, and to send forth even a portion of them from the St. Lawrence, and from other points in our valuable North American possessions, she must in a very short time destroy, or shut up in their ports, in hopeless inactivity, all the so much boasted of Navy or traders of the United States. And it might be asked--would any other power, when they saw we were really in earnest, dare to aid them in their difficulties; and what would then become of their immense commerce, from which alone they derive their present importance? Are not the feelings and interests of the Northern, Southern and inland States directly opposed to each other; and would not the continuance of the last war, for even a short time longer, have had the effect of causing discontents and divisions amongst the several States, already independent of each other, which could never again, in all human probability, have been brought in consequence to act in unison. But to convince even the most incredulous of this, and of the kind of spirit which was found to exist amongst the people of the States, and to point out clearly with what zeal and patriotism we were opposed in the last war in the march of our troops upon Plattsburg, I have only to lay before them some Brigade orders which were issued by Sir Thomas Brisbane at the time. "No. 5. None of the inhabitants of the country are to be prevented from passing the advanced posts either to the front or rear, from one hour after sunrise till sunset; and they are to be permitted to drive in cattle, or any thing else they may think fit; but officers commanding picquets are to be very careful in examining those who pass; and must take up, and send to the head-quarters of the Brigade (Dowy's house) such as may appear suspicious. "No. 7. Major-General Brisbane having received instructions to advance with the troops under his command into the territory of the United States, avails himself of the opportunity, to request that commanding officers will use every exertion to maintain the strictest discipline in their corps; and he holds them responsible, that in every instance when a complaint is made to them of any injury sustained by the inhabitants, that it is inquired into, and if necessary redressed; and whatever damage is done, that it is instantly paid for and charged against those concerned, and where this cannot be ascertained to the corps in general, so that unoffending people may not be sufferers.