Reviews — Tectonic Geology. 475 



cuticle of a Mi/rica may possibly be small fructifications of an 

 Ascomycetous fungus ; they bear a superficial resemblance to 

 undoubted fructifications recently found by the reviewer on similar 

 preparations of cuticles of Cretaceous leaves from Greenland. A 

 very useful bibliography accompanies the paper. Dr. Kriiusel's 

 contribution is a welcome addition to palseobotanical literature and 

 the work reaches a high standard. 



A. C. S. 



Tektoxicka Geologie, se zvlastxim zretelem k potrebam 

 BAXSKYCH TECHxiKU. (Tectouic Gcoiogv, v.'ith Special Regard 

 to the Needs of Mining Engineers.) By B. Stoces. Four 

 plates and 256 illustrations in the text. Moravska Ostrava, 

 1921. 



A TTEXTION should be called to a first-rate textbook of tectonic 

 -^ geology for mining engineers and students of mining, recently 

 issued by Professor Stoces of the University for Students of Mining 

 in Pribram, Czechoslovakia. The object of the book is to instil 

 practical knowledge. Merely theoretical reflections are reduced <;;s 

 to a minimum size. It gives exceedingly clear notions of all tectonic * 

 terms and facts by defining them in a few precise words. It sets 

 forth the methods of ascertainmg the geological structure, how 

 faults and the like show themselves in the landscape, in profiles and 

 maps, on the influence exercised by tectonics in the broadest sense 

 of this term on mining and quarrying, insisting on the favourable 

 and unfavourable influences they may exercise on the manage;nent 

 and ])rofitableness, and dwelling on often committed mistakes 

 arising from not sufliciently taking into account the structure of a 

 district. 



Up till now the book has only appeared in Czech, and while we 

 should recommend an English translation to make it more generally 

 available, we advise everybody who has to deal with Czech geological 

 literature to use the Czech text as a kind of technical cyclopaedia. 

 The many carefully selected illustrations, diagrams, maps, profiles, 

 and photographs help in the understanduig of the text, as scarcely 

 a single word is left unexplained by some sketch or other. 



The examples are mostly chosen from the district around Pribram, 

 the regions of the '"' Barrandeam " and of the Central Bohemian 

 granite mass, famous for the problems they offer to the geologist. 

 As Professor Stoces and his friend. Professor Kettner, to whom the 

 book is dedicated, have devoted themselves to the study of these 

 problems— in fact, we are indebted to them for ail our modern 

 knowledge of this region — the book will at the same time prove an 

 excellent, though naturally unsystematic, guide to the regional 

 geology of central Bohemia. 



Dr. T. MosciiELES. 



