The Ultimate Island. By L. de Giberne Sieveking., (Routledge. 7s. 6d.' net.)—The author has tried to put too much into this short book. Either the theme of the last island of the submerged continent of Atlantis, or that of the development of commercial aviation in the late 'thirties, of this century, or, again, that of the diamond-stealing, husband of the heroine's sister, who contrives to get the heroine implicated in his misdemeanours, would have been a good plot for what the author would probably call a " yarn." As it is, the development of each section of the story is scant, and the reader gets no picture of what is really the aim of the book--the description of the manners and customs of the inhabitants of the ultimate Island.