GEOLOGICAL SOCIETY OF PENNSYLVANIA. 



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tion of the Schuylkill coal measures, situated on the 

 western or right bank of the Susquehanna river in Perry 

 county, Pennsylvania, together with a more remarkable 

 specimen covered with the impressions of leaves, which 

 appear to have fallen promiscuously from trees growing 

 in the vicinity of muddy shale. Similar specimens, I 

 have been informed, are very common in our transition 

 coal measures. These impressions of leaves may be 

 compared to those of the Lycopodiolites dichotomus of 

 Sternberg. Vide "Essai d'un Expose Geognostico- 

 Botanique de la Monde Primitif, tab. 2." Vide pi. 14, 

 fig. 3. 



