Gen. Lyon, with upwards of two thousand National troops, left Booneville, Missouri, for the Southwest.--N. Y. Times, July 7.
The Military Board of Arkansas issued a proclamation, calling for 10,000 men to repel invasion by the National troops throngh Missouri. Each company is to arm itself with the usual weapons of the country, furnish its own tents and camp equipage, which will be paid for by the State. Regiments are ordered to organize for immediate service.--Memphis Appeal, July 4.
A correspondent in Morgan county, Va., in a letter to the Baltimore American, gives the following account of affairs in that district:--We are now experiencing and witnessing the evils of secession in this county, where we have always enjoyed the blessings of liberty and the freedom of speech. We dare not open our mouths now. The Confederate troops, which came into our county on last Sunday (three hundred and fifty), have caused a great stampede among our Union men. One-third of the male population has gone to Maryland for fear of being impressed in the Confederate service. A perfect reign of terror prevails here; business is suspended, and our citizens are compelled to stand on guard without board or pay. Neither friend nor foe is allowed to cross the river at this place or Hancock, but fortunately the river is very low, and we can occasionally steal away and wade across at other places, to get our mails. Two gentlemen from Maryland were arrested here yesterday and taken to Headquarters at Berkeley Springs, upon what charge I have not been able to learn. I presume they will be released to-day. It is impossible for us to learn the object of these troops, though it is reported to-day that they intend to march over to Hancock and take possession of a large quantity of flour and grain for the use of the army at Winchester.--Baltimore American, July 6.
The Twenty-Fourth Regiment New York S. V. from Oswego, arrived at Washington.--N. Y. Tribune, July 4.