The _University Geological Survey of Kansas_ is conducted under the authority of the Board of Regents of the State University, and has issued already several large and elegant volumes recording the operations and results of its work. The fourth volume, now before us, embraces the paleontology of the Upper Cretaceous, and is by _Samuel W. Williston_, paleontologist. Kansas is famous for its fossils, no equal area in the United States, perhaps, presenting such varied and remarkable records of this kind. Yet, while the State has furnished much of interest to the sciences of geology and paleontology, the published accounts in these departments are confined to scattered and abstruse papers accessible only to the specialist. The present publication is an effort to put this knowledge, so far as the particular formation to which it relates is concerned, within the reach of students. Professor Williston has been engaged for twelve years in the study of the geology and paleontology of the State, having spent more than three years in field exploration, and has been eight years collecting material for his book, enjoying the advantage of access to the very important collection of the university. Much of the information is here published for the first time. The fossils of the western part of the State only are described in it, for the sole reason that more preparatory work has been done on them in the university in recent years; but other departments are in preparation and will appear in due course. The fossils described are birds, dinosaurs, crocodiles, mosasaurs, turtles, microscopic organizations, and invertebrates, all of the Upper Cretaceous. In a paper on _The Relations of the People of the United States to the English and the Germans_, read before the Thursday Club of Chicago, Mr. _William Vocke_ undertakes a defense of the Germans against a supposition that they are hostile to the United States. This is right, if the Germans need defense, which we doubt; but to give his thesis the shape of an attack on England, as is done in the paper, is unnecessary. The account of the investigations conducted by Dr. _D. N. Bergey_ under the supervision of Drs. J. S. Billings and S. Weir Mitchell, on the _Influence upon the Vital Resistance of Animals to the Micro-organisms of Disease, brought about by a Long Sojourn in Impure Atmosphere_, already referred to in the Monthly, is published under the Hodgkins Fund in the Smithsonian Miscellaneous Contributions.