478 RetisKS — Leonhard and Geinitz's Neues Jahrbuch. 



broader valley is mostly coated witli alluvium. Tertiary deposits 

 are again met with when the Aqueduct takes the hill-sides towards 

 Baden, where there is an exposure of the Triassic limestone, 

 surrounded with the Mediterranean Tertiaries. At Mod ling the 

 Trias is seen, with gypsum ; and the Sarmatian Tertiaries form 

 most of the ground to the Eosenhiigel, beyond which the ground 

 falls, for about half an Austrian mile, to the valley-deposits of the 

 present river. 



The branch Aqueduct from Stixenstein (160-77 Viennese fathoms 

 above the Danube, and 9^ Austrian miles from Vienna) begins on 

 Triassic limestones and schists, and follows the valley-deposits of 

 the local stream, to join the main line at Ternitz. 



Besides containing many maps, plans, and diagrams, the text is 

 enriched with nearly a hundred numbered vignette sketches, mostly 

 geological, giving the local details of numerous well-executed 

 sections, supplemental to the longer sections on the plates. 



The description of the Aqueduct and the ground traversed by it 

 is given in chapters according to the successive segments. The 

 geology, including the paleeontology, is fully given, together with 

 references to all the authors and workers who have originated or 

 added to what is known of each locality. 



The quantity, temperature, and constitution of the waters of the 

 localities concerned are carefully noted and in many cases tabulated. 

 The thermal area of Baden, and the artesian wells of Atzgersdorf, 

 have special mention and maps. 



Various objects of antiquity were discovered in the course of the 

 works. Those from an ancient cemetery (of the Bronze Period) at 

 Leobersdorf, are particularly described and illustrated (pis. 17 and 

 18), by Baron von Sacken ; and some pre-historic skulls, from the 

 same place, by F. Teller. Besides the geological descriptions, 

 sections, and maps, with which this work on the Vienna Aqueduct 

 abounds, we must especially mention the beautiful illustrations and 

 careful definitions of new species of fossil Mollusca and Fora- 

 minifera (pis. 16a and 16&), with which Theodor Fuchs and Felix 

 Karrer have enriched this magnificent volume, which in every 

 respect worthily represents the liberality of an enlightened State, 

 and the industry and knowledge of enthusiastic and conscientious 

 geologists, both within and without the offices of the Survey, of 

 whom the Imperial Government may well be proud. — T.E.J. 



ni. — "Neues Jahrbtjch fur Mineralogie, Geologie und Pal^- 

 ONTOLOGiE," founded by K. C. von Leonhaed and H. G. Bronn, 

 continued by G. Leonhard and H. B. Geinitz. For the years 

 1876, 1877. 8vo. (E. Koch, Stuttgart.) 



THIS well-sustained periodical continues to supply us with the 

 results of the scientific industry of Germans and others who 

 studiously work at rocks, minerals, and fossils in the field and in 

 the laboratory. As usual, there are not so many memoirs devoted to 

 physical geology and paleeontology as to mineralogy and petrology ; 

 and the current correspondence shows, also, that the several fields 

 of mineralogical study are closely cultivated by the larger number 



