Reviews — Benecke's and Cohen's Geology of Heidelberg. 41 



Section 5 embraces the subjects of Economic importance, Mines 

 and Minerals, with a list of Mineral Localities, Stones, Quarries, and 

 Mineral Manures, and Water Supply. An Appendix gives a glossary 

 of Geological and Celtic terms. 



In conclusion we can only speak in the highest terms of the 

 appearance of the book, which is exceedingly well printed and 

 bound. The geological illustrations are diagrammatic and pictorial, 

 but the figures of fossils by Mr. W. H. Baily scarcely do justice to 

 the author of " Figures of Characteristic British Fossils." The map 

 on a scale of 27 miles to one inch is very nicely executed, and 

 shows at a glance the chief features of the Geology of Ireland. 

 We can cordially recommend Mr. Kinahan's book to every student 

 of British geology, and especially to those who desire to go into the 

 field and observe for themselves. 



Geological Map of Heidelberg. 



II. — Geognostische Kaete der Umgegend von Heidelberg. 

 Bearbeitet von Dr. E. W. Benecke und Dr. E. Cohen. Mit 

 Unterstiitzung des Grossh. Badischen Handelsministeriums. 

 (Blatt I., Heidelberg.) (Strassburg, 1877: KarlJ. Triibner ; 

 London, Triibner & Co.) 



FOUR years since x we had the pleasure of directing the attention 

 of our readers to the publication of a sheet (Sinsheim) of 

 a geological map of a portion of the Grand-Duchy of Baden, in 

 which the authors proposed to have incorporated the results of a 

 lengthened study of the area immediately surrounding Heidelberg. 

 The sheet then issued, the southern half of the projected map, 

 showed the district lying south of the Neckar Valley, and east of 

 the railway running south from Heidelberg. The present sheet, 

 which, though the last issued, is numbered " Blatt I.," embraces the 

 area lying east of the University town as far up the Neckar Valley 

 as Hirschhorn, with a smaller map of Eberbach, and its curious out- 

 crops of nephelinite, and extending as far north along the Bergstrasse 

 as Weinheim. Over this area granite, often containing hornblende, and 

 deposits of barytes distinguish it from the region lying further south, 

 where Trias beds cover a great portion of the surface. The sub- 

 divisions of the sedimentary and the varieties of the igneous rocks are 

 carefully indicated in colour, and the contours are given in great 

 detail. The map is a production of which the authors have good 

 cause to feel proud, and as a specimen of colour-printing it is every- 

 thing that could be desired. The scale of the map is 1 : 50000. 



It is to be regretted that the explanatory text, which the authors 

 stated, at the time they issued the first sheet, should accompany the 

 publication of the present one, has not yet been provided. It would 

 prove of great benefit to those geologists who may desire to use the 

 map in the field, and should not have been withheld. 



1 Geol. Mag. 1874, Decade II., Vol. I. p. 326. 



