SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 66 
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Ls) 
Dr. R. S. Bassler, curator of paleontology, spent some weeks in the 
Ohio valley, particularly in the Blue Grass region of Kentucky, in 
a search for large exhibition specimens, and in a study of their mode 
of occurrence. He was successful in procuring a number of showy 
exhibition specimens as well as numerous study collections. 
More difficult, however, was the discovery and quarrying of a 
fossil coral reef suitable for exhibition in the Museum. Coral reefs 
are known at several horizons in the Paleozoic rocks of the Ohio 
Fic. 26.—Strata outcropping along Chenoweth Creek at Jeffer- 
sontown, Ky., and containing a coral reef. See text for lettering. 
Photograph by Bassler. 
valley but they are seldom so exposed that an instructive section can 
be quarried out without injury to the specimens. A great reef of 
corals outcrops in the strata along the banks of Chenoweth Creek at 
Jeffersontown, near Louisville, Kentucky, and this was selected to 
furnish an exhibit for the Museum. A section of the stratified rocks, 
6 feet by 10 feet, outlined in the accompanying photograph (fig. 26), 
