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SCIENTIFIC LITERATURE.

over opposing Europe, compelled the recognition of an international principle based on the affinities of peoples, and inaugurated, "not only a new régime for Italy, but also a new public law for Europe." The empire of Napoleon, which rose to its culmination while these things were going on, was "nothing but an adventure out of accord with modern highly developed civilization," exhausted France and checked the education of the people in matters of government and habits of self-reliance. The rise of Prussia and the establishment, under Bismarck, of the unity of Germany, are regarded as an instance of the accomplishment of a noble end by the use of force. The struggle culminated in the war of 1870, the ultimate consequence of which was that "scarcely a vestige remained of those conditions of the Congress of Vienna which for so many years had been the anxious care of the European concert." The arrangement between Austria and Hungary, creating a dual monarchy, "established a government which was the result, not merely of political ingenuity, but of experience, and one that on the whole was successful"; and Austria has taken its place among the enlightened governments of Europe. The "Eastern question" is presented as one in which the attitude of the powers is no longer determined in Europe, but in China, India, and Africa, the settlement of which seems to be indefinitely postponed. The concluding chapters relate to present conditions.

 

Mr. Seward excuses himself in rather an apologetic way for undertaking to write a book on Fossil Plants[1] for the Cambridge Natural Science Manuals—a task which Professor Williamson, a founder of modern paleobotany, had considered too serious; but students of botany and geology have cause to thank him for having consented to attempt the writing of a book intended to render more accessible some of the important facts of the science, and to suggest lines of investigation in it. The botanist and geologist, not being always acquainted with each other's subjects in a sufficient degree to appreciate the significance of palæobotany in its several points of contact with geology and recent botany, the subject does not readily lend itself to adequate treatment in a work intended for students of both classes, and the author has accordingly tried to shape his treatment with this point in view, and so as to adapt it to both non-geological and nonbotanical students. As a possible aid to those undertaking research in this field he has given more references than usually seem appropriate in an introductory treatise—often to specimens of coal-measure plants in the Williamson cabinet of microscopic sections, now in the British Museum—and has dealt with certain questions in greater detail than an elementary treatment of the subject requires. His plan has been to treat certain selected types with some detail, and to refer briefly to such others as should be studied by any one desiring to pursue the subject more thoroughly, rather than to cover a wide range or to attempt to make the list of types complete. The book opens with a sketch of the history of palæobotany, which is followed by a discussion of the relation of palæobotany to botany and geology. A succinct review of geological history is then given, in which the several principal formations are briefly described. The theory of the pro-


  1. Fossil Plants. For Students of Botany and Geology. By A. C. Seward. With Illustrations. Cambridge, England: The University Press. New York: The Macmillan Company. Pp. 452. Price, $3.