Few things, since I have been here, have impressed me more painfully than what, for four or five months past, has appeared as bitter military opposition to the new State Government of Louisiana. I still indulged some hope that I was mistaken in the fact; butPage 107 copies of a correspondence on the subject, between Gen. Canby and yourself, and shown me to-day, dispel that hope. A very fair proportion of the people of Louisiana have inaugerated a new State Government, making an excellent new constitution---better for the poor black man than we have in Illinois. This was done under military protection, directed by me, in the belief, still sincerely entertained, that with such a nucleous around which to build, we could get the State into position again sooner than otherwise. In this belief a general promise of protection and support, applicable alike to Louisiana and other states, was given in the last annual message. During the formation of the new government and constitution, they were supported by nearly every loyal person and opposed by every secessionist. And this support, and this opposition, from the respective stand points of the parties, was perfectly consistent and logical. Every Unionist ought to wish the new government to succeed; and every disunionist must desire it to fail. It's failure would gladden the heart of Slidell in Europe, and of every enemy of the old flag in the world. Every advocate of slavery naturally desires to see blasted, and crushed, the liberty promised the black man by the new constitution. But why Gen. Canby and Gen. Hurlbut should join on the same side is to me incomprehensible.
Of course, in the condition of things at New-Orleans, the military must not be thwarted by the civil authority; but when the constitutional convention, for what it deems a breach of previlege, arrests an editor, in no way connected with the military, the military necessity for insulting the Convention, and forcibly discharging the editor, is difficult to perceive.  Neither is the military necessity for protecting the people against paying large salaries, fixed by a Legislature of their own choosing, very apparant. Equally difficult to perceive is the military necessity for forcibly interposing to prevent a bank from loaning it's own money to the State. These things, if they have occurred, are, at the best, no better than gratuitous hostility. I wish I could hope that they may be shown to not have occurred. To make assurance against misunderstanding, I repeat that in the existing condition of things in Louisiana, the military must not be thwarted by the civil authority; and I add that on points of difference the commanding general must be judge and master. But I also add that in the exercise of this judgment and control, a purpose, obvious, and scarcely unavowed, to transcend all military necessity, in order to crush out the civil government, will not be overlooked. Yours truly A. LINCOLN