CONTENTS OF PART II. 



Alphabetically arranged — the names of the Authors in capital letters. 



i-age 



Abich, Prof. Geological Sketches of the provinces beyond the 



Caucasus 61 



Arsenic and copper, general distribution of 26 



Asia Minor, Baron Von Tchihatcheff on geology of 74 



Auvergne, M. Pomel on palaeontology of 61 



Barrande, M. J. Preliminary notice of the Silurian System and 



Trilobites of Bohemia 29 



Bear Island, Baron Von Buch on 48 



Berzelius, Baron, on Polished Rocks of Sweden 76 



Bohemia, Silurian Rocks and Trilobites of 29 



Buch, Baron Von, on Bear Island and Spirifer Keilhavii 48 



Caucasus, Prof. Abich on the geology of the provinces beyond 41 



Copper and arsenic, general distribution of 26 



Cystidea, Dr, Volborth on the Ai-ms of 18 



D'Orbigny, M. a. On the Foraminiferae of the Basin of Vienna... 69 



Ehrenberg, Prof. On Meteoric Dust and volcanic products from 



Hecla containing organic bodies 10 



__ On the Sirocco-dust which fell at Genoa 25 



Foraminiferse, M. A. D'Orbigny on the geological distribution of... 69 



Genoa, on the Sirocco-dust which fell at, on 10th May 1846 25 



Hecla, Prof. Ehrenberg on organic bodies in the volcanic pro- 

 ducts of 10 



Heer, Prof. O. On the Fossil Insects from the tertiary formations 



of (Eningen 60 



Insects, Prof. Heer on fossil 60 



Meyer, M. H. Von. On the nature and classification of Pterodac- 



tyh 72 



Monte Nuovo, notice of its origin by an eye-witness 19 



Monti Pisani, Prof. Savi on the geology of the 1 



Moreno, M. Garcia, and M. Wisse. On Rucu-Pichincha 23 



