 It is supposed the same gang who robbed the HOFFs attempted to rob Colonel John SEWARD, but failed.It is said that the colonel fortified himself in a block- house, and that on one cold night at about midnight a man rode up to his door and hailed, desiring to see the colonel, who instead of opening the door caught up his rifle and opened a hole through which he could look out.He discovered a man mounted on a fine horse, without a saddle and with rope stirrups.