...y the effect. I have ordered troops from Helena, escorted by a gunboat, the whole in charge of Colonel Wilson, Topographical Engineers, to cut the levee across Yazoo pass, and to explore through to Coldwater , if possib near Vicksburg, January 31, 1863. I am pushing every thing to gain a passage, avoiding Vicksburg. Prospects not flattering by the canal of last summer. Other routes are being...