Desiring in this and in all other instances to act with the most cautious respect to the claims of other branches of the Government, I bring this subject to the notice of the Senate that if it shall be deemed proper to raise any question it may be discussed and decided before and not after the power shall have been exercised. M. VAN BUREN. WASHINGTON CITY, _June 11, 1838_. _To the Senate of the United States_: I submit herewith, for consideration and action, a communication from the Secretary of War and the treaty with the Otoe, Missouria, and Omaha Indians therein referred to. M. VAN BUREN. WASHINGTON, _June 20, 1838_. _To the House of Representatives of the United States_: I transmit, in compliance with a resolution of the House of Representatives of the 11th instant, reports from the Secretaries of State, Treasury, and War, with the documents referred to by them respectively. It will be seen that the outrage committed on the steamboat _Sir Robert Peel_, under the British flag, within the waters of the United States, and on the steamboat _Telegraph_, under the American flag, at Brockville, in Upper Canada, have not been followed by any demand by either Government on the other for redress. These acts have been so far treated on each side as criminal offenses committed within the jurisdiction of tribunals competent to inquire into the facts and to punish the persons concerned in them. Investigations have been made, some of the individuals inculpated have been arrested, and prosecutions are in progress, the result of which can not be doubted. The excited state of public feeling on the borders of Canada on both sides of the line has occasioned the most painful anxiety to this Government. Every effort has been and will be made to prevent the success of the design, apparently formed and in the course of execution by Canadians who have found a refuge within the territory, aided by a few reckless persons of our own country, to involve the nation in a war with a neighboring and friendly power. Such design can not succeed while the two Governments appreciate and confidently rely upon the good faith of each other in the performance of their respective duties. With a fixed determination to use all the means in my power to put a speedy and satisfactory termination to these border troubles, I have the most confident assurances of the cordial cooperation of the British authorities, at home and in the North American possessions, in the accomplishment of a purpose so sincerely and earnestly desired by the Governments and people both of the United States and Great Britain. M. VAN BUREN. WASHINGTON, _June 28, 1838_. _To the House of Representatives of the United States_: