We have already published a fairly comprehensive review of _Richard Semon's In the Australian Bush_,[13] based upon the German original, by Prof. E. P. Evans, in the fifty-second volume of the Monthly (November, 1897). But little needs to be added to what Professor Evans has said of the book besides announcing the appearance of the English edition, the translation for which was written under the author's own superintendence, and the contents of which do not differ in any important particular from the German impression. Professor Semon went to Australia on a special zoölogical mission, and spent two years there. His purpose was the study of the wonderful Australian fauna, the oviparous mammals, marsupials, and ceratodus (lungfish). These animals represent forms which, with a few notable exceptions, have long since become extinct in other countries, where they have to be studied in such parts of their bony forms as happen to have been preserved in the rocks, while here they can be examined alive and in the flesh--"living fossils," as the author fittingly calls them, links between the present age and one of the geological periods of the past. His observations on these subjects are in course of publication in a special scientific work, not quite half of which has appeared. The present volume consists in the notes of travel and adventure, the dealing with men, the anthropological studies, and what we might call the _obiter_ observations of the expedition. Almost simultaneously with Professor Semon's narrative we have from the same publishers another book, on _The Native Tribes of Central Australia_,[14] which deals more fully, exclusively, and perhaps more expertly with the anthropology of a part of the Australian continent. Of the authors, Mr. _Gillen_ has spent the greater part of the past twenty years in the center of the continent, and as sub-protector of the aborigines has had exceptional opportunities of coming in contact with the Arunta tribe; and both of them have been made fully initiated members of that tribe. Though both about Australia, the two books do not cover the same ground. Australia is very large, and its physical conditions are such that the groups of tribes inhabiting the various regions have for a long period of time been isolated from one another and have followed different lines in development. Professor Semon's observations were made in the Burnett district of northeastern Queensland, while those recorded in the work of Spencer and Gillen were made in the very center of South Australia and of the continent. Consequently, in reading them we read really about different things. In addition to the investigation of various customs, such as those connected with initiation and magic, special attention has been paid by Messrs. Spencer and Gillen to the totemic system and to matters connected with the social organization of the tribes; and here again the authors insist upon the differences between the groups of tribes, and that the