...HARPER & BROS. publish a new work, entitled "Clara, or Slave Life in Europe." It contains a preface written by Sir A. Alison, Bart.; but the authoress remains incognita. The work exhibits a picture of the various states of society, and endeavors to prove that they all have their fetters—even more galling than those which bind the Southern slaves. It is a set off to Uncle Tom's Cabin, and is written in a plain, concise, and determined style.