THE second part of this work consists of elaborate descriptions of fifty preparations in the New Museum at Oxford, designed to illustrate some of the typical specimens of the several animal classes.

The science of taxonomy -- Principles of zoological classification -- The species category -- The polytypic species, population systematics and infraspecific categories -- Theories of biological ...

THIS long-promised and hoped-for book has at last appeared, and we may say at once that it fully maintains the well-earned reputation of its learned author. It will probably be most useful to his own ...