122 Reviews — De Lapparenfs Geology. 



tion of the PalEeozoic strata of Ostrogothia; but he also made a brief 

 tour to the islands of Gothland and Oesel. 



He published a small memoir descriptive of his work in the latter 

 island in the following year, and discussed the question of the 

 natural arrangement of its fossiliferous rocks. 



In the year 1876 also he contributed a paper to the pages of the 

 Geological Magazine, drawing a careful comparison between the 

 oldest fossiliferous strata of Northern Europe and those of Britain, 

 and contending that the oldest Scandinavian strata and fossils are at 

 least of equal antiquity with those Cambrian fossiliferous deposits 

 discovered by Dr. Hicks in the neighbourhood of St. Davids. 



{To be concluded in our next Number.) 



12, E AT" I IB "W S. 



I. — Tkaite de Geologie. Par A. De Lapparent, Professeur a 

 rinstitut Catholique de Paris. Fasc. 1-4. (Paris, 1881 : F. 

 Savy.) 



^F the manuals devoted to the study of geological science in 

 France, few only appear to be adapted to the requirements 

 of the advanced student, or have the detailed character of some of 

 those published in Germany, America, and England, by Credner, 

 Naumann, Dana, Lyell, or Jukes. Apparently the most important, 

 certainly for the time, are the Traite de Geognosie, 1819, by 

 D'Aubuisson de Voisins, and the Nouveaux Elements of M. Huot in 

 1837. The valuable Legons de Geologie pratique, by Elie de Beau- 

 mont, and the later works of Beudant, Gosselet, Leymerie, Vezian, 

 Contejean, D'Halloy, Eaulin, and Lambert are satisfactory and useful 

 elementary manuals, but not quite so full of details as the works 

 of the authors above noticed. 



To supply this deficiency, and to systematize the leading facts and 

 principles of the science according to his view of placing them 

 before the student, has been the object of M. de Lapparent in this 

 new treatise of geology, and which, doubtless, embodies the method 

 of instruction given by him as Professor at the Catholic Institute of 

 Paris during the last six years. 



A practical field geologist of the school of Elie de Beaumont, 

 and as co-editor for fifteen years with the late M. Delesse, of the 

 Eevue de Geologie (now unfortunately suspended), has made him 

 acquainted with a wide range of geological literature and the facts 

 and opinions of numerous authors, and thus materially assisted 

 in the preparation of this work, not without, however, feeling the 

 difficulties of the task, but with the hope " en I'adaptant aux 

 necessites de la science actuelle, I'ensignment des maitres qui lui 

 ont ouvert la voie." 



The introduction contains a definition of the subject, an exposi- 

 tion of the methods and application of geology, and a short sketch 

 of the histoi-y of the science. According to the principles explained 



