218 New Publications. 



5. Die ersten Begriffe der Mineralogie und Geognosie fur junge prac- 

 tische Bergleute. Von Friederick Mohs. Herausgegeben nach Seinem 

 Tode. 2-Band, 8vo. Wien, 1842. A copy of this work has at length 

 reached us. The second vohime^that on Geognosy j — we consider very interest- 

 ing ^ and likely to change or modify prevailing views in Geognosy and Geology, 



6. A System of Mineralogy, comprehending the most recent dis- 

 coveries, with numerous woodcuts and four copperplates. By James 

 Dana, A.B. 2d edition, 1 vol. 8vo, pp. 801. New York and London, 

 Published by Wiley and Putnam. 1844. This heautiful volume does great 

 credit to the author, and also to his printers, engravers, and publishers. We 

 have carefully examined it, and although we do not agree with him in all his 

 views, we can with great truth recommend his booh to every one desirous of be- 

 coming acquainted with mineralogy, as one of the best treatises on this very im- 

 portant branch of Natural History in our language. 



7. A Lecture on Institutions for the Better Education of the Farming 

 Classes. By Charles Daubeny, M.D., F.R.S., Professor of Rural Eco- 

 nomy at the University of Oxford. 8vo, pp. 32. John Murray, London. 

 1844. 



8. Lehrbuch der Naturphilosophie. Yon Oken. Dritte, neu Bearbeitete 

 Auflage. Zurich, 1843. This work contains a condensed view of the cele^ 

 hrated author's speculations in general natural history, and his systems of 

 geology, mineralogy, zoology, and botany, 



9. Lehrbuch der Physikalischen Geographic und Geologic. Von B. 

 Studer, Doctor and Professor in Bern. Erstes Capitel Enthaltend: 

 Die erde im Verhaltniss zur Schwere. 8vo, pp. 398. Bern, 1844. 

 Much is expected from this work on Physical Geography, by a philosopher so 

 celebrated as its author. The first part only has reached us. We therefore 

 delay expressing our opinion of its merits until the whole work is before the 

 public. We may, however, remark, that Geologists look forward to the volume 

 on Geology as likely to contain a full geognosy of the Alps, which Professor 

 Studer is so able to give, from his very extensive practical acquaintance with 

 them. 



10. Excursion through the Slave States. By G. W. Featherstonhaugh, 

 F.R.S., F.G.S. 2 vols. 8vo. John Murray, London. These amusing 

 and interesting volumes we recommend to the attention of our readers. The 

 author's Geological observations will be considered afterwards, 



11. Grundzuge der Botanik Entworfen. Von Stephan Endlioher und 

 Franz Unger. 8vo, pp. 494. Wien, 1843. This is one of the best of the 

 smaller philosophical works on Botany we are acquainted with. 



