78 Reviews — Geology of Alsace and Lorraine. 



In the foregoing notes I have endeavoured to classify the principal 

 deposits which throw any light upon the succession of the later de- 

 posits of our country, and by piecing the fauna and flora together to 

 show that, beyond the vast cessation of life during the great or major 

 glaciation, the succession of organic forms is one without violent 

 alterations, or necessitating alternate cold and hot periods. There can 

 be little reason to fear that ultimately a sequence of these varied 

 deposits and their contents will be established. The fuller the lists are 

 made, the sooner such a to-be-wished-for conclusion will be arrived at. 



BBVI IE W S. 



I. — Abhandlungen zur Geologischen Specialkarte von Elsass- 



LoTHRINGEN. 



Ein Beitrag zttr Kenntniss der Elsasser Tertiars. Von Dr. A. 



Andrew. Mit 12 lithographirten Tafeln, 2 Kartenskizzen, und 



10 Zincographien. Band II. Heft. III. 1884. 

 Dek Diluvialsand von Hangenbieten oi Unter-Elsass, seine 



Geologischen und Palseontologischen Verhaltnisse und vergleich 



seiner Fauna mit der recenten Fauna des Elsass. Von Dr. A. 



Andrew. Mit 2 photographischen Tafeln, einem Profil und 



fiinf Zincographien. Band IV. Heft. II. 1884. 

 Memoirs for the Special Geological Map of Alsace-Lorraine. 



A Contribution to the Knowledge of the Tertiary Strata of Alsace. 



By Dr. A. Andrew, pp. 351, 12 4to. plates, 2 maps, and 10 



zincographs. 

 The Geological and PALiEONTOLOGiCALBELATiONS of the Diluvial 



Sand of Hangenbieten in Lower Alsace, and a Comparison of 



its Fauna with the present one of Alsace. By Dr. A. Andrew. 



pp. 90, 2 photographed plates, 1 profile, and 5 zincographs. 



IN the first of these memoirs a detailed description is given of the 

 Tertiary strata of Alsace. The lowest beds, which belong 

 to the Middle Eocene, are freshwater limstones distinguished by 

 the characteristic Planorbis pseud ammonius and containing teeth of 

 Lophiodon and other mammals. Above these are sandstones with 

 plant-remains, and then thick beds of dolomitic limestones with 

 Melania and other freshwater genera, referred to the Upper Eocene. 

 Beds of Oligocene age are very extensively developed in Alsace, and, 

 on account of their containing petroleum and bitumen, are economic- 

 ally important. Borings have been made in them to a depth in 

 some places of 300 metres without penetrating through them. The 

 lowest Oligocene strata consist of beds of gypsum, apparently of 

 brackish-water origin ; these are succeeded by petroleum-bearing 

 marls and sandstones, and then marine deposits of sand, marls, 

 septarian-clays with numerous foraminifera, and fish-bearing shales, 

 which belong to the Middle Oligocene. The Upper Oligocene 

 deposits are marine or strongly brackish marls, sandstones and con- 

 glomerates. 



