ERROR to the Circuit Court for the Middle District of Tennessee. Hamilton and others brought assumpsit in the court below against Dillin, surveyor of the port at Nashville, Tennessee, to recover a charge of four cents per pound paid by them to the said defendant, from August, 1863, to July, 1864, for permits to purchase and ship to the loyal States large quantities of cotton, amounting to over seven millions of pounds. This payment was one of the fees or charges required by the regulations of the Treasury Department to be made as a condition of carrying on the said trade between those portions of the insurrectionary States within the lines of occupation of the Union forces and the loyal States.