It would be impossible to criticise justly a magazine of
such a special character as Natural Science without noticing it at consider- able, and here impossible, length. It must suffice, therefore, to say that this magazine, which has now entered on its second volume, has already taken a first place in the class of periodicals to which it belongs, and that the new number is distinguished by the variety of its contents. Thus, among the subjects treated of are :—" The Succession of Teeth in Mammals," " Climate and Floral Regions in Africa," and " The Moas of New Zealand." Among the more general papers, " Natural Selection and Lamarckism," by Mr. William Platt Ball, may be selected as a piece of able and thoughtful polemic directed against Mr. Herbert Spencer.