io8 The American Geologist. August, i904. 
The Saccharoidal sandstone appears in high lands in many 
places in Franklin county and is well developed along the Mis- 
souri in the northeast part of the comity, also in the northwest 
between St. John and Boeuff creeks, where Dr. Shumard esti- 
mated it to be 175 feet thick. 
On the ^Missouri bluffs at the line of Gasconade and Frank- 
lin it has been quarried and used in bridge masonry. From 
this place I obtained part of an Orthoceras over 6 inches in 
diameter with a siphuncle over an inch in diameter. The spec- 
imen was over 2 feet long. Fragments of what may be ortho- 
ceratites were also obtained 34 inches in diameter. 
On the top of the bluffs between Cole's creek and the Gas- 
conade, the upper beds are of a beautiful and somewhat banded 
pink color. Near this there were formerly two large tumbled 
masses of sandstone known as the Little and Big blossom, but 
the railroad builders blasted them away. Farther west the 
sandstone is only occasionally seen, as the Second Magnesian 
limestone more often reaches from the base to the summit of 
the hills. Wolf's point, 30 miles above Jeft'erson, is the last 
point where the sandstone is to be seen. The last point west 
where it is seen on the railroad is near Syracuse. It is found 
near the Versailles. It is occasionally found on the highlands 
hear the Gasconade for 30 miles from its mouth. 
At Westpoint, 111., it forms a flat anticlinal which exposes 
the rock 75 feet in thickness for a half a mile along the ]\Iiss- 
issippi. 
On the west side of the Mississippi in Lincoln county, ]Mo., 
opposite Cap au Gres, the St. Louis limestone lies horizontal, 
but on the north side of a branch here the rocks are tilted up 
at an angle of 80° and dip southwest, showing the Burlington 
limestone and still farther are older rocks, including the First 
Magnesian limestone, Saccharoidal sandstone and the Second 
Magnesian. Sandy creek, entering the valley three miles north, 
derives its name from the frequent occurrence of sandstone 
along its bluffs. The fold in strata just spoken of is known as 
the Cap au Gres axis. It is recognized in LaSalle county, 111., 
next at Westpoint, in bluffs west of Cap au Gres, thence north- 
west via Auburn, Bowling Green, near New London, and is 
last seen in Missouri near Newark, in Knox county. From 
the Mississippi bluffs it can be traced for several miles by a 
