Arrest on change of treason.
--Before the breaking out of actual hostilities between the United States and the Confederate States, and before intercourse between the two sections had been interdicted, several business houses of Baltimore had removed their stocks of goods to Richmond, for reasons satisfactory to themselves. Among them was the dry goods house of Lanier, Brothers & Co. We are informed that they brought their goods hither by way of Washington, and were not obstructed. One of the firm, Mr. L. L. Lanier, returned to Baltimore a few days ago, and on Tuesday last was arrested by Lincoln's police on the charge of treason, in having ‘ "furnished aid and comfort to the enemy !"’ These facts we learn from the Baltimore Sun, which paper also announces the arrest of Mr. J. W. Silby, of the same firm, by order of General Banks, at Sandy Hook, Maryland. The Baltimore Exchange, of Thursday, contradicts the arrest of Mr. Lanier, but the Sun, of the same date, reiterates its previous statement, that he was arrested and sent to the Fort. We are unable to say which is correct, but we suppose the friends of Mr. Lanier in this city are in possession of the facts.