An Extortioner la Treablr.A hackaaa bjr the name of John Hancock was yesterday arrested for extortion, under thefollowing circumstances: A gentleman attiredon one of the trains of earn, who wished to go to tbs bouse of Mr. Charles Jtnmj, In the Sixth ward. Hancock told him be wonid take Wra there, and Induced hJo to get into hi* hack. He then droTC him about a suture, and told him that he was at Mr. Jeremy's house, and demanded of him Are dollar* fare. The gentleman de*“1^ *; » °«f*geoci a eharjte, *nd also «• presaed hla dtmbta at being at tke light place.k# w“ Mr* *«»% ffiSfaSf??6 yi0lant to Wi d«aon«rattoMthree dollar*, and eragloytog another convoy^J°itU **“**• ''0»PtoT»mmsde to Mayor Lowry, who bat Hancock ar tawatV'fe* ,w*Jhe£tor a hsiring this morn-SSt nfi .Sl^CT Tka wom #f th® *w?! wbera Mr. JeremyS A ii * ' J*’§ oclgbborbood, andu li • eleir cam of extortion, or a more prooarname for 11 would be stealing. We can only5^L*aT* ^ ftU P*04ltJ oI tao law meted out to them ■Haw1