The following dispatch, by the Balize Telegraph Line, from Fort Jackson to Major General Twiggs, was received yesterday :

Fort Jackson, Sept. 2-0, 1861. Major General D. E. Twiggs:

Mr. Fulda, the telegraphic operator at the head of the Passes, arrived here this morning from that point. He reports an engagement between the C. S. steamer Ivy and the U. S. steamer Water Witch, without injury to the Ivy.