Hence it appears that Professor Schmoller's work differs from that of the elder line of historical economics in respect of the scope and character of the preliminaries of economic theory no less than in the ulterior aim which he assigns the science. It is only by giving a very broad meaning to the term that this latest development of the science can be called an "historical" economics. It is Darwinian rather than Hegelian, although with the earmarks of Hegelian affiliation visible now and again; and it is "historical" only in a sense similar to that in which a Darwinian account of the evolution of economic institutions might be called historical. For the distinguishing characteristic of Professor Schmoller's work, that wherein it differs from the earlier work of the economists of his general class, is that it aims at a Darwinistic account of the origin, growth, persistence, and variation of institutions, in so far as these institutions have to do with the economic aspect of life either as cause or as effect. In much of what he has to say, he is at one with his contemporaries and predecessors within the historical school; and he shows at many points both the excellences and weaknesses due to his "historical" antecedents. But his striking and characteristic merits lie in the direction of a post-Darwinian, causal theory of the origin and growth of species in institutions. In this line of theoretical inquiry Professor Schmoller is not alone, nor does he, perhaps, go so far or with such singleness of purpose in this direction as some others do at given points; but the seniority belongs to him, and he is also in the lead as regards the comprehensiveness of his work. * * * * * But to return to the _Grundriss_, to which recourse must be had to substantiate the characterisation here offered. The entire work as projected comprises an Introduction and four Books, of which the introduction and the first two books are contained in the volume already published. The two books yet to be published, in a second volume, promise to be of a length corresponding to the first two. The present volume should accordingly contain approximately three-fifths of the whole, counted by bulk. The scheme of the work is as follows: An Introduction (pp. 1-124) treats of (1) the Concept of Economics, (2) the Psychical, Ethical (or Conventional, _sittliche_), and Legal Foundations of Economic Life and of Culture, and (3) the Literature and Method of the Science. This is followed by Book I. (pp. 125-228) on Land, Population, and the Industrial Arts, considered as collective phenomena and factors in economic life, and Book II. (pp. 229-457), on the Constitution of Economic Society, its chief organs and the causal factors to which they are due. Books III. and IV. are to deal with the Circulation of Goods and the Distribution of Income, and to give a genetic account of the Development of Economic Society.