LIVINGSTON COUNTY. 239 



12 of tbe general section of LaSalle county. Fossils found in it were 

 Prodiictus longi&pinm, Spirifer cameratus, Sp. lineatus, Athyris subtilita, 

 and Cyatlwxonia. 



The same limestone appears again in tbe elbow of tbe river on tbe 

 right bank, on the south part of section 19, near tbe middle line ; also in 

 a detached mass slipped down in the east part of the S. E. qr. of sec. 19, 

 with tbe underlying greenish clay and shale forming tbe bank. 



Sandstone appears on the north line of sec. 30, T. 30, E. 4 E., near 

 the middle corner. This seems to be No. 49 of tbe general section of 

 LaSalle county. The base is shaly, discolored by wafer bands of coal 

 and coal-plant fragments. This sandstone continues in sight to the 

 mouth of Long Point creek, on the left bank of the river, in the south- 

 east corner of sec. 29 ; then reappears on the right bank just above the 

 mouth of Long Point creek. The dip shows well here to the north-east 

 one foot in twenty. In the N. E. qr. of the N. W. qr. of sec. 32, in the 

 bend of the river, the direction of the dip is a little more east, and the 

 massive sandstone is overlaid by a bed of silicious and micaceous shale, 

 on which rests a clay shale of light blue color, the silicious shale being a 

 grayish light blue. In the clay shale are two bands of limestone some- 

 what like ironstone, irregular, separated by clay shale, and each about 

 one foot thick. The main sandstone appears again one quarter of a mile 

 below the mouth of Mud creek, on the left bank of the river, and at 

 the mouth of Mud creek is the underlying shaly sandstone. This is 

 near the middle of sec. 32. 



Continuing up the river this sandstone appears in the south part of 

 sec. 5, T. 29, B. 4, with five or six feet of the underlying shales. One- 

 quarter of a mile further up, and probably in the north part of sec. 8, 

 coal comes in suddenly, with section as follows : 



Ft. In. 



Sandaton e ? 



Coal 1 G 



Fire-clay 1 



Shale ? 



This 18 inches of coal is generally represented elsewhere, and in 

 LaSalle county, by fragments and wafer seams of coal. The fire-clay is 

 absent. A thin shaly sandstone of 18 inches is here found two feet 

 below the coal. 



South-east three quarters of a mile or less, in a straight line from this 

 point, a coal seam appears in the bed of the river. Its thickness could 

 not be determined, but is at least one and a half feet. The right bank 

 shows argillaceous shales, with bands of nodules, and thin shales indi- 

 cating the Streator coal. The dip is between south-east and east. This 

 point is a little below the mouth of Scattering Point creek, and is prob- 

 ably in the north part of tbe south-east quarter of sec. 8. The shales 

 in the right bank of the river in the north-west quarter of sec. 9 in that 



