JUNE 16TH.—To-day, receiving dispatches from General Floyd, in Western Virginia, that ten thousand Yankees were advancing through Fayette County, and might intercept railroad communication between Richmond and Chattanooga—the Secretary got me to send a telegraphic dispatch to his family to repair hither without delay, for military reasons. About this time the Secretary’s health gave way again, and Major Tyler had another fit of indisposition totally disqualifying him for business. Hence I have nearly all the correspondence of the department on my hands, since Col. Bledsoe has ceased to write.