A volume of letters, etc., of King William I to Princess Louise of Prussia, dating from 1817 to 1829. The material included is well chosen, both personal and political, giving a nice record of the Kaiser when he was still Prince of Prussia, of his entourage, and of the times. They further throw light on many half known facts. Not of wide general interest, but the many beautiful reproductions of portraits and old prints add value to the book.