Copperheads Attempting to Incite Insurrection.

It can scarcely have escaped the attention of persons of ordinary observation that the most violent denunciations of the Government by the Copperhead press are posted out at a time when the Union arms are most successful and the prospect of an early suppression of the rebellion most promising. When the rebel cause seems prosperous, they are comparatively quiet and hopeful. But let Lee be defeated and driven back on Richmond, and Johnston outgeneraled and beaten in Georgia — then the whole pack suddenly perceive that the "Constitution is in danger" and open with their fiercest assaults upon the Administration under whose auspices the war is being conducted. The fact is as significant as it is patent, and indicates most clearly the sympathy existing between the Copperhead leaders and the rebels of the South.

The recent successes of Generals Grant and Sherman in Virginia and Georgia seem to have driven the rebel sympathizers of the North to a state of desperation that would be pitiable to behold, were it not a sure indication of the success of the Union arms. Nothing more strikingly illustrates this fact than a recent article in the Jeff. Davis organ in this city — an organ which, with the energy of desperation, seems just now to be exerting all its feeble abilities to stimulate its ignorant and deluded followers to the point of rebellion against the legal and constitutional authority of the Government in imitation of the rebels of the South. Basing its statements on assumed or distorted facts, it indulges in the wildest lunacy, or substitutes for reasoning the chatterings of the feeblest imbecility.

A characteristic article in the State Register of Saturday morning last furnishes an excellent specimen of what we have just been commenting upon. It opens with an endorsement of the advice of the Albany Atlas and Argus, (Gov. Seymour's organ) recommending all the Copperhead members of Congress "to leave their seats in a body and go home" — thus doing what they can to deprive the army of the support to which it is entitled, and give direct aid and comfort to the rebellion by endeavoring to block the wheels of Government and put a stop to the further prosecution of the war. A few "gems" from other parts of the article, taken almost at random, will serve to show the spirit of diabolism which runs through the whole. One extract is as follows:

The Democrats [Copperheads are meant] of the Northern States are now suffering at the hand of Lincoln's Administration, more outrage, more oppression, a deeper and baser tyranny than the enkindled fancy of the most ardent fire-eater ever conjured up as possible to befall him.

When it is remembered that the sheet from which this language is taken has devoted its best efforts to the attempt to prove that the war is the result of Northern aggression upon the rights of the South, and that the rebellion is therefore not without palliation, if it is not wholly justifiable, the above seems nothing less than a frantic appeal to a faction to aid Southern rebels by instituting rebellion at the North. But this is shown more clearly in the following:

The idea that Democrats [Copperheads again] are so helpless in the grasp of the tyranny which bayonets have built up at Washington, must be dismissed before consequences more sorrowful, more horrible than the Southern rebellion, have reduced our unhappy country to a state worse than primeval chaos.

We do not claim for the above specimen of frantic nonsense and "primeval chaos," any intrinsic meaning. It is possible to deduce a meaning from it only by noting its obvious and unmistakable spirit. This implies nothing less than a threat to inaugurate here, in the loyal North, a civil war "more horrible than the Southern rebellion." It is threatened in the most abominable syntax and with worse rhetoric, even to out-do the horrors of Fort Pillow and the bloody massacre of loyal men and women at the South for the crime of loyalty to the Government — and yet, the debauched and venal sheet which utters this atrocious threat, prates hypocritically about the "consequences" it is seeking to bring about, and in anticipation of which it revels in fancy, as "sorrowful." Out upon such mockery of humanity, such shameless hypocrisy!

We give one more extract. It is this:

The rebellion we are this moment battling to put down [we, indeed!] and which has assumed such fierce proportions, had never a tithe of the provocation an entire moiety of the free people of the North have suffered from those whom their supporters call the "Government."

We place upon record these attempted justifications of the vilest treason and truculent invitations to rebellion in the North, and invite to them the calm and considerate attention of loyal men of every party. But no one need be frightened at such silly and impotent ravings. — They have been repeated, with trifling variations, after every rebel reverse. The extraordinary violence of the proxysms now may be traced to the gratifying fact that Southern treason is now receiving its severest and most staggering blows. Let such manifestations then be received only as evidence of the desperate and hopeless condition of the rebel cause: for, let it be remembered,

The mower mows on, though the viper may writhe,
And the Copperhead curl 'round the blade of his scythe.