REVIEWS 133 



species of Waagenoceras, those formerly assigned to that genus being 

 shown to belong to a new genus, Perrinites. The following new genera, 

 or subgenera, are described: Uddenites of the Medlicottidae; Mara- 

 thonites, Vidrioceras, and Perrinites of the Arcertidae; Prothallasso- 

 ceras of the Thalassoceratidae. While there might be a difference of 

 opinion as to whether these should have generic rank, they are undoubt- 

 edly groups of species deserving recognition, and seem to be sharply 

 characteristic of horizons. These horizons may be zones, though they 

 should not be given that rank until they are shown to have interregional 

 significance. 



Dr. Bose has enriched his work with numerous critical comparisons 

 with all known kindred Permian ammonoids, so that in the future 

 paleontologists will have an easier time in determining relationships and 

 stratigraphic positions of this group. The species and genera are all 

 fully described and beautifully illustrated. 



This contribution should take rank with that of Karpinsky on the 

 Artinsk fauna of the Ural Mountains, and of Gemmellaro on the Sicilian 

 Permian, and make Texas a classic region for the study of late Paleo- 

 zoic ammonoids. 



James Perrin Smith 



La Face de la terre. Par Ed. Suess, Traduit avec rautorisation 



de I'auteur et annote sous la direction de Emmanuel de Mar- 



GERiE. Tome III: 4'' Partie (Fin) avec un Epilogue, par P. 



Termier, de I'Academie des Sciences. Also, Tables generales 



de Touvrage. Paris: Librairie Armand Colin, 1918. Pp. 



1361-1724 and 1-258. 



An evfent of no little importance to geologists has been the issue of 



the concluding parts of La Face de la terre, the French edition of Das 



Antlitz der Erde by Eduard Suess, by many considered the greatest 



treatise upon geological science since the founding of modern geology. 



The complete French edition of this great work now comprises no 

 less than 13,437 imperial octavo pages, 12 colored plates, and 583 figures 

 in the text. Suess's work exists complete therefore in English and 

 French, as well as in the original German edition and the first volume 

 has been done into Italian. The importance which attaches to the 

 French edition lies in its great superiority over the original, and this 

 not alone because of its better dress, but because the translator has 

 supplied a vast amount of original material out of a mental equipment 



