...r Jeff. Davis was wrecked this evening on the St. Augustine (Fla.) bar. The Charleston Mercury gives the following particulars of the loss: On Friday evening, the 16th inst., Captain Coxetter was off St. Augustine , but the wind having increased to half a gale, he could not venture in. He remained outside the bar the whole of Saturday without observing any of Lincoln's fleet. On Sunday morning at half-past 6,...