‘Australia's Animals Discovered’ is a title which to some extent might mislead. Grisly little books about discovering our furred and feathered friends, about the quaint oddities of marsupial creatures and about being kind to koalas may be conjured up. But this one is nothing of the kind. It is written by the Director and the ornithologist of that magnificent fossil, the Macleay Museum of the University of Sydney, and is to my knowledge a book altogether original in conception.