Page:Popular Science Monthly Volume 55.djvu/578

560 survival of the fittest is illustrated. In the seventh essay certain facts of animal distribution as related to the origin of species are considered; in the eighth (Latitude and Vertebrata) the curious biological problem of the possession of more numerous vertebræ by northern than by tropical fishes is considered—a problem the solution of which on any other hypothesis than that of the derivation of species would be impossible. The evolution of mind is then taken up as the sum total of all psychic changes, actions, and reactions, and this development is extended to nations the laws of whose greatness "expand themselves from the laws which govern the growth of the single cell." In the essay on Degeneration a lesson is drawn in favor of individual initiative. Hereditary Inefficiency is discussed in view of the danger from pauperism. Some of the aspects of the woman question are considered in another of the essays. In the paper on The Stability of Truth some recent enunciations of Lord Salisbury, Mr. Balfour, and Haeckel respecting science are criticised. The last essay is on The Struggle for Realities, and concerns the relations of science and conservatism, the Church, etc.

Mr. Robert P. Porter's volume on Industrial Cuba deals with living questions of the island. It aims to give a description of Cuba as it appeared to the author when he visited it in the fall of 1898 as special commissioner of the United States to report on its industrial, commercial, and financial condition. It is the result of nearly seven months' inquiry and hard work, in which the island was visited three times, more than five hundred witnesses were examined, and "numerous statements" were studied and analyzed. Among the special subjects treated of are the political and economical condition of Cuba, the outlook for labor, the population, sanitary work, Colonel Waring's report, municipal problems in Havana, banks and currency, the revenue and tariffs, commerce, sugar, tobacco, mines and mining, agriculture and stock, timber and fruit, transportation, navigation, education and religion, and the outlook for the future.

Naturalists and bibliophiles have reason to be grateful to Mr. Call for his verbatim reproduction of Rafinesque's Ichthyologia Ohioensis. The book is of importance as constituting, in the language of the editor, the foundation of fresh-water ichthyology in America. No book dealing specifically with the Ohio Valley area as a region has since been published. The original description of many fish forms which are now recognized by ichthyologists as good species were first given in this book, and many have not since been reprinted. Further, the book contains the first and most complete description, to date, of the Ohio River from Pittsburg down, with notices of all its tributaries. Its value as a book about fishes is not limited to the Ohio River, for the species of that stream are found, to a greater or less extent, throughout the Mississippi Valley, so that it is in effect a necessity to all students of the fresh-water fishes of that territory. The editor regrets that Rafinesque did not preserve in some manner the types of his genera, instead of which, when the technical description was completed and some common form, if one was known, was referred to, the specimen was discarded or rejected. Hence his descriptions can not be compared conveniently with prepared specimens in cabinets or with descriptions made from them, but the student must go to the river and look up the living fish. The original papers of Rafinesque on fishes were published in The Western Review and Miscellaneous Magazine, Lexington, Ky., in 1819, 1820, and 1821. The matter was then arranged in book form from the same type. Two different systems of pagination resulted. These have both been indicated in the present edition by the insertion of the numbers at their proper places. The reprint is an exact copy of the