THE WEEKLY REGISTER, Baltimore, March 6, 1813  Beginning on the front page and taking 4 1/2 pages is the: "British Declaration" in which the reason for the War of 1812 is explained from the British point of view. It begins: "The earnest endeavors of the prince regent to preserve the relations of peace & unity with the United States of America having unfortunately failed, his royal highness...deems it proper publicly to declare the causes and origin of the war in which the government of the United States has compelled him to engage...".
Further on are many reports from the War of 1812 under: "Events of the War" with subheads on: "Military", a letter from Col. Macomb at Sackett's Harbor; a letter from General Winchester when a prisoner of war in which he details his loss at the Battle of Raisin River, followed by the: "British Official Account" of the same battle. Also: "General Winchester's Army" which gives additional accounts of Raisin River--with considerable detail--and includes a quite rare "map" of the point of battle, with type set to note positions of the armies (see). Also a letter from Capt. Evans of the frigate Chesapeake, and a nice article headed: "Capture of the Frolic".
"The President's Speech" is the inaugural address of James Madison.
Sixteen pages, 6 by 9 3/4 inches, great condition.

As noted in Wikipedia, this title: "...(was) one of the most widely-circulated magazines in the United States...Devoted primarily to politics...considered an important source for the history of the period."