GENTLEMEN:-Your original address, presented on the 30th ult., and the four supplementary ones presented on the 3d inst., have been carefully considered. I hope you will regard the other duties claiming my attention, together with the great length and importance of these documents, as constituting a sufficient apology for not having responded sooner.

These papers, framed for a common object, consist of the things demanded and the reasons for demanding them.

The things demanded are

First. That General Schofield shall be relieved, and General Butler be appointed as Commander of the Military Department of Missouri.

Second. That the system of enrolled militia in Missouri may be broken up, and national forces he substituted for it; and

Third. That at elections persons may not be allowed to vote who are not entitled by law to do so.

Among the reasons given, enough of suffering and wrong to Union men is certainly, and I suppose truly, stated. Yet the whole case, as presented, fails to convince me that General Schofield, or the enrolled militia, is responsible for that suffering and wrong. The whole can be explained on a more charitable, and, as I think, a more rational hypothesis.

We are in a civil war. In such cases there always is a main question, but in this case that question is a perplexing compound—Union and slavery. It thus becomes a question not of two sides merely, but of at least four sides, even among those who are for the Union, saying nothing of those who are against it. Thus, those who are for the Union with, but not without slavery; those for it without, but not with; those for it with or without, but prefer it with; and those for it with or without, but prefer it without.

Among these, again, is a subdivision of those who are for gradual, but not for immediate, and those who are for immediate, but not for gradual extinction of slavery.

It is easy to conceive that all these shades of opinion, and even more, may be sincerely entertained by honest and truthful men. Yet, all being for the Union, by reason of these differences each will prefer a different way of sustaining the Union. At once, sincerity is questioned, and motives are assailed. Actual war comming, blood grows hot and blood is spilled. Thought is forced from old channels into confusion. Deception breeds and thrives. Confidence dies, and universal suspicion reigns. Each man feels an impulse to kill his neighbor, lest he be killed by him. Revenge and retaliation follow. And all this, as before said, may be among honest men only. But this is not all. Every foul bird comes abroad, and every dirty reptile rises up. These add crime to confusion. Strong measures deemed indispensable, but harsh at best, such men make worse by maladministration. Murders for old grudges, and murders for self, proceed under any cloak that will best serve for the occasion.