From Missouri — the lowa Democracy.
St Louis, July 27
--Several of the papers of this city this morning have notified property-holders on the lines of railroads that they will be assessed for injuries unless they fight the bridge burners or track destroyers or give information of hostile designs.
The Southerners are gathering in force in Southern Missouri.
The Iowa Democratic Convention have declared that the ‘"irrepressible conflict"’ doctrines of Lincoln and Seward are the causes of the present war, and they pledge to the Federal Government the support of the Democracy of Iowa in all legitimate ways calculated to settle existing difficulties.