...-Two one-horse ambulances and a four-horse physicians' wagon, taken from the Yankees at Centreville on the 21st July, were brought down by the regular freight train on Friday night last, consigned to Major Smith , Quartermaster C. S. A. We presume they were sent as a pattern by which to have some made for the use of our army.--The ambulances are made of hickory and ash, and are the most complete things of the...