NO. 2 



SMITHSONIAN EXPLORATIONS, I918 



25 



L'oUowing- this Appalachian work, Dr. Bassler spent some days 

 in central Kentucky and eastern Indiana searching' for certain 

 exhibits. In Kentucky he located a layer of limestone which had been 

 so carved out by underground water that it could be used to illus- 

 trate the formation of a cave in miniature, and a suitable piece was 

 quarried out. Certain fossil faunas which were much needed to 

 complete the Museum's paleontological material from this area 

 were also secured. The main object of the work in Indiana was to 

 obtain a large slab of limestone composed entirely of certain char- 

 acteristic brachiopods known to all beginners in paleontology, fre- 



FiG. 25. — Exposure of Olenellus shale and Corynexochus limestone, north 

 of York, Pa. Photograph by Resser. 



quent requests for such exhibits having been made by students visit- 

 ing the Museum. After a week of search, two large, well-preserved 

 slabs of this kind were found, but in an area some miles from a rail- 

 road. Upon endeavoring to have them transported to a freight 

 station it w^as found impossible to procure help of any kind. These 

 two specimens were therefore buried deep enough to insure their 

 safety until such time as they can be shipped to Washington. 



Dr. Charles E. Resser spent a part of his vacation studying the 

 detailed stratigraphy of the Lower Cambrian deposits of the Lan- 

 caster and York valleys of Pennsylvania. He found that the lowest 



