... . NORTH LONDON COLOSSEUM. Drak. Sir,-- The energetic proprietors of this establishment tnust in future be careful how thoy insert names in their bills which they have no right or authority to do. I have no knowledge as to who they are, but they evidently are aware that I am well-known in that part of London, and seek to trade upon my name. I am, and have been for some time, engaged by Messrs. ...