428 Scientific Intelligence. 
dens, (or a closely allied species,) Retzia Mormonii, Rhynchonella Uta, 
Spirigera subtilita, Spirifer cameratus, S. planoconverus, and a Euom- 
phalus similar to £. rugosus of the coal measures, while the few new 
and undetermined species associated with these, are, for the most part, 
enough to include, not only all the beds containing almost exclusively 
Permian forms, but a considerable portion of the upper coal measures, it 
will be interesting to notice, e ascend in the series, how far each of 
wana, and Retzia Mormonii were not met with above division No. 37; 
while Spirifer planoconverus, Productus splendens? and Rhynchonella 
Uta, were not observed above 34, nor Spirifer cameratus above 32. 
Fusulina cylindrica, of the slender variety so common in the coal meas- 
ures of Kansas and Missouri, was not seen above 22; nor was any spe 
zons far beneath, were occasionally met with in 30, 25, 23, and 20, gene 
rally associated with the same species of Synocladia, ranging far down 
into the upper coal measures. In division No. 19, we again met Wl 
“ali f; ; 
rdiana in : 
and a large Orthisina similar to O. umbraculum, but apparently more 
Hnely striate. i 
_ Ascending through the intermediate beds to No. 12, we sere rt 
‘Meet with nearly all the species mentioned in 19, with the Pie 
“honetes mucronata, We also have, first in 18, a large spé we: 
