The City Marshal of Leavenworth is clearly a pot-companion of the first (whiskey and) water. He declines to address his fellow-citizens in the commonplace terms usually recognised in more prosaic communities. To adopt his own style of phraseology, ROBERTSON is clearly a "gay and festive cuss." He is a specimen brick from Kansas, and doubtless always carries one in his hat. The expression "ordinary gait," as applied to driving in Kansas, where everybody owns "fast stock," is rather equivocal in these quieter latitudes to be sure, but we may guess that, at Leavenworth, a man who rides or drives at a pace of twenty miles an hour, is liable, "for instance," to a fine of $20, or just one dollar per mile. Kansas maybe a very nice place to live in, for some people, but we would hardly recommend Mr. ROBERT BONNER to emigrate thither, and so risk the probability of being advertised as a "gay and festive cuss." * * * * * SHIP AHOY! Of all public performers, there are none who "draw" better than the gymnasts who risk their necks by attempting hazardous feats. The fool who attaches himself by the heels to the car of an ascending balloon is sure to have thousands of feeble-minded females waving handkerchiefs at him. BLONDIN, the great French tomfool, brought more people to Niagara Falls to see him, possibly, add a new Fall to the prospect, than ever the Falls themselves did. And when another donkey announces that he is going to stand upon his head on the point of a church spire, that church is sure to be thronged--outside. These performances, and all of their sort, should be made punishable, and will probably be so when a hundred or two performers shall have been killed, in addition to those who have already suffered. Not nearly so exciting as performances of the kind referred to, though, perhaps, quite as rash, are the ocean voyages occasionally essayed by tiny, toy ships. One of these--the _Red, White and Blue_--is announced as about to start upon a "voyage round the world." We wish her our best wishes, and hope she may get round in the roundest way and time. One of her first stopping places, though, as we see, is Martha's Vineyard. Our advice to the skipper of the toy ship, is to go no further than that delightful haven of rest. MARTHA. will cherish her as a chimney ornament, or give her to her kids to play with--and nobody will be hurt. * * * * * Two Renderings. _Finis coronat opus:_--The end crowns the work. _Finis coroner opus:_--There is plenty of work for the Coroner, but the "end" does not always appear to be gained. All of which is respectfully submitted to the investigators of murder in this city. * * * * * The Modern Monks of La Trappe. The Coroner, the Assistant District-Attorney, and certain other officials who have been trying the "trap" game on the witnesses examined in the NATHAN murder case. * * * * *