CLVII. Oregon Question--Notice to abrogate the Article in the Treaty for a Joint Occupation--The President denounced in the Senate for a supposed Leaning to the Line of Forty-nine 662 CLVIII. Oregon Territorial Government--Boundaries and History of the Country--Frazer's River--Treaty of Utrecht--Mr. Benton's Speech--Extracts 667 CLIX. Oregon Joint Occupation--Notice authorized for terminating it--British Government offers the Line of 49--Quandary of the Administration--Device--Senate Consulted--Treaty made and Ratified 673 CLX. Meeting of the Second Session of the 29th Congress--President's Message--Vigorous Prosecution of the War Recommended--Lieutenant-general proposed to be created 677 CLXI. War with Mexico--The War Declared, and an Intrigue for Peace commenced the same Day 679 CLXII. Bloodless Conquest of New Mexico--How it was Done--Subsequent Bloody Insurrection, and its Cause 682 CLXIII. Mexican War--Doniphan's Expedition--Mr. Benton's Salutatory Address, St. Louis, Missouri 684 CLXIV. Frémont's Third Expedition, and Acquisition of California 688 CLXV. Pause in the War--Sedentary Tactics--"Masterly Inactivity" 693 CLXVI. The Wilmot Proviso--Or, Prohibition of Slavery in the Territories--Its Inutility and Mischief 694 CLXVII. Mr. Calhoun's Slavery Resolutions, and Denial of the Right of Congress to Prohibit Slavery in a Territory 696 CLXVIII. The Slavery Agitation--Disunion--Key to Mr. Calhoun's Policy--Forcing the Issue--Mode of Forcing it 698 CLXIX. Death of Silas Wright, Ex-Senator and Ex-Governor of New York 700 CLXX. Thirtieth Congress--First Session--List of Members--President's Message 702 CLXXI. Death of Senator Barrow--Mr. Benton's Eulogium 706 CLXXII. Death of Mr. Adams 707 CLXXIII. Downfall of Santa Anna--New Government in Mexico--Peace Negotiations--Treaty of Peace 709 CLXXIV. Oregon Territorial Government--Anti-Slavery Ordinance of 1787 applied to Oregon Territory--Missouri Compromise Line of 1820, and the Texas Annexation Renewal of it in 1845, affirmed 711