Colonel: In obedience to Special Order No. 27, I proceeded to the Parish of Washington, and immediately commenced notifying all men belonging to my command to come to camp, when they promised to do so, and I find nine of them here on my return. Others I saw belonging to my command, and some of company C, who positively refused to do so, saying at the same time that they would prefer to die at home. The absentees from this command, together with the conscripts, have formed themselves into a company for mutual protection and resistance of confederate authorities. They number some seventy-five men, and meet in their camp once or twice a week, and the depredations carried on by them are fearful. The citizens are intimidated, and dare not speak their mind in the neighborhood of these men. I applied to Lieutenant-Colonel Miller, the nearest confederate authority at Ponchitoula, for force sufficient to arrest these men. Answer is herewith inclosed. I also beg leave to submit the following facts: That the entire lake coast of St. Tammany, over sixty miles in width, is left unguarded, and daily communication is kept up with the enemy in New-Orleans; that cotton and other contrabands are shipped to the enemy to any extent the people may see proper. I saw many loads of cotton being hauled for shipment to New-Orleans. There is a steamer by the name of the Charles Rust, Captain J. Johnson, plying between the lower landings of Pearl River and some of the counties in the State of Mississippi. Upon the return trip she brings cotton to the lower landings, from thence it is shipped to New-Orleans. Negroes are constantly leaving Washington and Fort Tammany Parishes, Louisiana, and Hancock and Pike counties, Mississippi, and the people think they will all leave if there is not sufficient force sent to protect the coast. I find the people much exposed to the depredations of this band, and I ask in behalf of the citizens of the Parish of Washington, in which companies. A, C, and K of this battalion were raised, that some force be sent to protect the families of the men who are now in the service of their country. With the above facts, I beg leave to submit myself your obedient servant,
J. J. Slocum, Captain Co. A, Ninth Battalion P. R.
The above letter was brought home by a Massachusetts soldier.--Boston Traveller.