32 
THE GEOLOGIST. 
maculatus Ditto. 
heteropliyllus .... Ditto. 
Taylorii Ditto. 
serratus Chalk. 
Hamites gigas Limestone. 
Belemnites electrinus . . . Chalk. 
mucronatus .... Ditto. 
Echinus Ditto. 
Fragments of wood from the 
Forest Bed 
Teeth and Bones of Icthyo- 
saurus Lias. 
(Green's Geology of Badon.) 
PROCEEDINGS OF SOCIETIES. 
ASSOCIATION OF AMERICAN GEOLOGISTS AND NATURALISTS. 
Proceedings of the 3rd. annual session held at Boston, in 1842. 
April 26th J 1842, Prof. Locke in the chair ; the chairman exhi- 
bited sections of the rocks of the lead regions of the upper Missis" 
sipij with remarks on the Geology of the west. 
1. A section from the heights of little Mohaqueta through 
Dubuque Mines, to Suisinawa Mound ; fifteen miles. This sec- 
tion exhibited : 
1. The chff limestone, containing lead veins in the middle and 
lower portions. 
2. The blue limestone, (Trenton limestone.) 
3. Presumptively the lower magnesian underlying the blue. 
II. A section of Prairie du chien exhibiting the following rocks, 
descending series. 
feet. 
1. Soil and cliff limestone . . * . . 60 
2. Blue fossiliferous limestone . . . .115 
