CHAPTER VII.. Mexico Declares War.

MEXICO DECLARES WAR. Mexico declares War against the United States--Congress authorizes the President to call for Fifty Thousand Volunteers--Organization of the Army of the West--Phenomenon seen by Santa Fe Traders in the Sky --First Death on the March of the Army across the Plains--Men in a Starving Condition--Another Death--Burial near Pawnee Rock-- Trouble at Pawnee Fork--Major Howard's Report.