New Yohk, Sept. 1G - D, B. Penn, signing himself Lieutonant-Govornor and acting Governor of Louisiana, telegraphs to tlio newspapers of this city as follows : " The North can form no idea of the robbery and spoliation to which we have been subjccted. My movement was necossitated by the attitude of the people, as they demanded it. I am now in full possession of the govornment of the State. The colored people aro satisfied and contented. A strong brigade of colored troops fully organized and armed, and in the service of the usurper, refused to íire a shot in his defense. The most perfect peace and good order prevail. We are thoroughly loyal to the Federal government, and in the operations of the past two days there have been no oxcesses or violations of the law. This government now is the only ono in existente in Louisiana.