196 Scientific Intelligence. — Geology. 



the islands at Uddevalla, and also on the whole sea-coast of 

 Southern Norway, there are here and there banks of sea- 

 shells, sometimes 200 feet above the present level of the sea. 

 The shells are, in general, well preserved, none are calcined 

 or weathered, and all of them are of species that still live in 

 the neighbouring sea. The horizontal beds in which they 

 lie, shew that they have been quietly formed here, and that 

 they were formerly the bottom of the sea. One of them, the 

 Lepas halanuSy is always attached to the rocks of the coast ; so 

 that, during the motions of the surface of the sea, it is momen- 

 tarily above its surface. Brongniart, with whom I visited these 

 banks at Uddevalla, remarked, that if the sea, at any time, co- 

 vered these places, that we would probably find lepades or bar- 

 nacles adhering, if any of the rocks could be exposed. We 

 searched for exposed portions of rock, and soon found them, with 

 barnacles adhering, which had remained attached from the pe- 

 riod when Uddevalla was 200 feet under the surface of the sea. 

 I consider this as the oldest and most certain of all those marine 

 testimonies which go to prove that the Scandinavian land has 

 risen above the sea ; for a fall or sinking of the sea 200 feet 

 around the whole coast is not to be thought of. What raises 

 the land, and how and when will its elevation be finished ? But 

 who would venture to answer these questions ? 



9. Greensand Jorination in Sweden. — Nilson has announced, 

 in the Stockholm Transactions, the discovery of the greensand 

 in Schonen. It contains, besides univalve and bivalve marine 

 shells, different fossil land plants. The green sand of Schonen 

 may be considered as the termination of the great tertiary series 

 of rocks which extends from Germany, under the waters of the 

 Baltic, until it terminates in the higher lying parts of Schonen. 



10. Coal of Hogands. — This interesting deposite appears to 

 occupy, in the geognostical series, a place between the old coal 

 formation and that of the brown coal. 



11. Hill of Magnetic Iron-ore. — Menge describes a hill of mag- 

 netic iron-ore he met with at Kuschwa, in Siberia, 400 feet high, 

 which rises through primitive greenstone. The iron-ore is asso- 

 ciated with sodalite and augite. On the west side of the moun- 

 tain, he observed a remarkable amygdaloid rock, in which the 

 basis is of garnet. The amygdaloidal masses are calc-spar, and 

 the vesicular cavities are lined with crystals of scapolite. 



