The President's Message. When this document arrived, our first and last pages were filled; and its great length has precluded us from giving the whole of it in this week's paper as we intended to do. Full two-thirds of it is occupied with a labored defence of the iniquitous and unnecessary war with Mexico. Considered merely as an ex parte, one sided argument, it is quite a plausible production. In the remaining portion of the Message, which we regret we cannot furnish this week, Mr. Polk applies for a loan of $23,000,000 to carry on his war, to be contracted for 20 years and thinks appropriations for many ordinary purposes can be suspended during the war, and the avails be applied to its prosecution. He also recommends duties on the free articles, doubtless referring especially to tea and coffee, to help raise enough to meet the war expenditures. On the question of Harbor Appropriations, he is silent. The copy of the Message from which we print is full of errors; and if the reader finds any in this paper, he will please straighten them for himself. We would refer our readers to the advertisement of Mr. H. W. Welles. He has the largest and best assortments of Hardware that we have seen for sale in Ann Arbor. Congress met last Monday. We shall next week give an abstract of its proceedings.