Circumstances have transpired within a few weeks past, in this neighborhood, which place beyond a doubt the existence of an organized band of Abolitionists in our midst. We counsel our friends who have slave property to keep a sharp lookout, lest their valuable slaves may be induced to commit acts which might, jeopardize their lives. Mr. Grafton Thomasson lost a valuable negro a week ago, and we have not the least doubt that she was persuaded by one of this lawless gang to destroy herself rather than remain in slavery. In fact, one of this gang was heard to remark that she did perfectly right in drowning herself, and just what he would have done, or what every negro who is held in bondage should do. We ask, Shall a man expressing such sentiments be permitted to reside in our midst? Be permitted to run at large among our slaves, sowing the seeds of discord and discontent, jeopardizing our lives and property? In another instance we hear of a servant being tampered with, and induced to believe that she was illegally held in bondage; since which time she has been unruly, and shows evidence of discontent. Such is the effect produced by permitting the _convicts_ and _criminals_ of the Eastern cities shipped out here by the aid societies to reside in our midst. The depredations of this fanatical sect do not stop here. Their crimes are more numerous and their acts more bold. It is well known that on Independence and Walnut Creeks, within a few miles of this place, a great number of free slaves and Abolitionists are settled whose thieving propensities are well known. We honestly believe that an organized band of these outlaws exists, whose objects are pecuniary gain and spite, to rob us of our property, drive off our cattle and horses, incite our slaves to rebellion, and, when opportunity afford them facilities for escaping, to aid them. Within a short time about one hundred and fifty head of cattle have been stolen from this neighborhood, driven off, and sold. Eight or nine horses and several mules have been taken out of the emigrants' camp, driven to parts unknown, and the money is now jingling in the pockets of the Abolitionists. Occurrences of this kind were never before known in this neighborhood, and prior to the shipment of the _filth_ and _scum_ of the Eastern cities our property was secure and our slaves were contented and happy. The enormity of these offenses, and the great loss of property, should open the eyes of our citizens to their true situation. We can not feel safe while the air of Kansas is polluted with the breath of a single Free-soiler. We are not safe, and self-preservation requires the total extermination of this set. Let us act immediately, and with such decision as will convince these desperadoes that it is our fixed determination to keep their feet from polluting the soil of Kansas.