134 Wisconsin Academy of Sciences, Arts, and Letters. 



in tlie possession of Dr. Lapliam, of Milwaukee, and have seen 

 tlie fossils and qiiartzite pebbles in the same fragments side by 

 side. 



II. The observations on the North Eange were made about 

 the Lower Narrows of the Baraboo river and westward from 

 there about half a mile. This north range seems to be less 

 continuous both as to elevation and as to the character of its 

 rock material. I am told by Dr. Lapham that it seems rather 

 to be made up of detached masses of metamorphic rocks. 

 The rising ground, however, never entirely disappears, and the 

 quartzite seems to be found as far to the east and west as in 

 the south range. At the Baraboo Narrows the metamorphic 

 rocks are in great force, the cliffs on either side the river, which 

 here makes a direct cut through the range from south to north. 



Section 2.— Through North range at W. Bluff of Baraboo Narrows. A, thick-bedded 

 dark colored quartzites, with some talco siliceous schist; B, siliceous schist; C, hori- 

 zontal sandstone; B. V, Baraboo Valley. 



being as much as four hundred feet in height. The body of 

 the bluff on the west side is made up of heavy beds of quartz- 

 ite, with, in places, intercalated beds of metamorphic conglom- 

 erate, and of a talcose schist like that in the south range. These 

 beds all stand at a very high angle, between 75 and 80 degs. 

 from the horizontal, the dip being north, with possibly a slight 

 inclination to the east. At the bottom of the hill on the south 

 side is an exposure of a peculiar light-colored siliceous schist, 

 entirely different from any of the other rocks of the series. An 

 old shaft sunk some thirty feet on the schist, affords most 



