You must know an embankment is making at Richmond for drawing barges, for the benefit of the City's trade. It encroaches on the garden of Colman, manager of the little theatre in the Haymarket. He cut away the piles; the City went to law with him and the town of Richmond, and cast them, and renewed the invasion. On Monday evening Colman hired an "Association," who stormed and levelled the new works, and knocked down two persons who opposed them, and half-killed one. A committee of the City arrived on Thursday in their barge, and (I suppose by authority of Lord Amherst countersigned by Lord Bathurst) seized twenty of the rioters, and now hold them imprisoned on board their floating King's bench, under a guard of the military, who are applied in to all sauces.