Gen. John A. Logan and Illinois Copperheads.

The Register has some comments to make upon the statement which we published yesterday morning, describing the feeling among the officers in Gen. Grant's Department in view of the disloyal demonstrations in the Illinois and Indiana Legislatures. The copperhead organ, true to the policy and instincts which have guided it for some time past, chooses to slander the officers and soldiers of the Army of the West, by assuming that they agree with itself in sentiment, and are therefore in reality disloyal to the cause in which they are fighting. We published a statement a few days ago coming from rebel sources, to the effect that our soldiers in the next engagement would shoot their officers and go over to the rebels. The Register must be laboring under the hallucination that this infamous story is true — or at least it seems to wish it to be so.

The copperhead organ is unable to allude to this subject, without making a shameful attack on Gen. Hurlbut — for no other reason, as we can perceive, than that he is wholly devoted to the cause of the Union, and believes in employing such means as will insure the crushing out of rebellion. After quoting the dispatch from the Missouri Democrat, which we published, it says:

Gen. Hurlbut had just been at Springfield making a speech under the direction of Gov. Yates, embodying precisely such bombast, sustain and falsehood as it contained in the preceding statement in regard to the alleged meeting of major and brigadier generals of Gen. Grant's army. We have no idea that Gen. Logan is such an ass as to have made any such remark as is quoted on him. No man better than he knows the people when he is recorded as threatening, and no man better than Gen. Logan knows that such talk would be received at home at the veriest gasconade. We rather think the whole story is the invention of Hurlbut, who, having stayed late with [unknown] of the stay-at-home warriors hereaway, and participated in their vaporing, got the venue badly mixed, and gave out at Cairo that the conclave mentioned above was held somewhere in Dixie, instead of at Springfield.

Every day accounts from the army, not only of the west, but of the east, tell of the same dissatisfaction, among the soldiers, in regard to the government's negro policy, that exists among the masses at home.

If the Register has testimony to prove the state of "dissatisfaction, among the soldiers in regard to the government's negro policy" of which it speaks why does it not produce that testimony. We have furnished abundant proof of the utter contempt and detestation in which copperheads are held by the officers and soldiers in the army; and we could give much more, had we the space to do so.

But so far, although we have had assertions from the Register of the alleged "dissatisfaction" to the army, we had nothing but assertions — the proof has been entirely wanting.

As an attempt is made to create the impression that Gen. Logan sympathizes with the faction we are now giving "aid and comfort" to the rebellion by assailing the Government, it is but just to that brave and noble officer to give some proofs of the position he does occupy; and we have the means of doing so. We have before, is a letter from a prominent citizen of this State, now an officer in Gen. Grant's Department, dated at Memphis, Tenn., January 30th, 1863. In it occurs the following passage:

"Gen. John A. Logan says he would like to take his division up to Illinois and annihilate the traitors there. The army generally would like to send those traitorous scoundrels in our State and Indiana to that place where a drop of cold water would be more agreeable to them than the sign of the ‘Golden Circle.’"

Here is proof coming from a gentleman whose opportunities of obtaining information are unsurpassed, which not only corresponds with the statement already given of Gen. Logan's views, but which goes farther, and shows what sort of feeling prevails in the army also. It agrees precisely with the statements we receive from all quarto[unknown]. There is indubitable evidence that the army is loyal, in spite of the "stay-at-home peace [unknown]en hereaway," who have neither the courage nor the patriotism to enter the army, but who are trying to demoralize and discourage the army by a dastardly "fire in the rear."