THE ftl.lHK. lIEFALCATIOB WOT A MTTB, BIT a Reality.— The rumor current iv this city last week that a defalcation of ado,!**) had been discovered in the account of a bank off! cer in Sin ts street, was generally supposed to , have origiuated from an error ol several thousand dollars iv the "cash" of a bank in that street. But it is now confidentially as serted by bank officers, who have the means of