266 The American Geologist. April, isos 
along the Gasconade river below the sandstone. I have elsewhere 
stated that fossils do occur in cherty la3^ers below the second 
sandstone. That is the position in which he found the fossils up 
to his Sec. 25. Now, he does not mention having found fossils 
in Nos. 26 and 30 and I suppose that the^' were not found. In 
his published report he says nothing of fossils at Gasconade in 
No. 32. But in his article in the American Geologist he does 
make such a statement. Now, I do not doubt that he or someone 
else maj' have found fossils at Gasconade, but the layer in which 
they were found was one much higher geologically and belonging 
in beds referred to the second Magnesian limestone. There are simi- 
lar strata with fossils both in the second and third Magnesian 
limestone formations. The statement made that those near Arling- 
ton and Gasconade are identically the same he could not prove 
unless the connection was uninterrupted. From his own printed 
sections there must certainly be breaks of at least ten miles. 
The first and second sandstones occur in regular beds, often 
thick. Other sandstones which are thinner and are often lenticu- 
lar do occur interstratified with the Magnesian limestones as stated 
elsewhere. 
In that part of Missouri lying west of a line passing south from 
Cole county, the first sandstone is not often found, except in 
pockets, and the first Magnesian limestone is also seen at but few 
places. In Cole county just over the second sandstone we find a 
cellular siliceous rock, very much resembling a buhr stone. This 
has also been observed in Webster county. 
In southeast Missouri, chert beds are general!}' associated with 
the second sandstone, and they are often fossil if erous, as in Iron, 
Madison and Reynolds. These chert beds sometimes are over 100 
feet thick. 
On page 1 11 of the iron report, certain fossils are enumerated 
with Dr. Shumard referred to as authority, and he is made to re- 
port the occurrence in the first sandstone of certain fossils in the 
counties of Wright, Ozark, Miller and Pulaski.* Now, referring 
to Dr. Shumard"s report on Pulaski, Shumard says, "that gaster- 
opods are found in the third Magnesian limestone," and saj'S no- 
thing about them in the sandstone. In the report on AVright 
county, Dr. Shumard mentions fossils only from the second Mag- 
nesian limestone, and says nothing at all about fossils from the 
*See Mo. Geological Report, 18.5.5-71. 
