415 



being removed ; sand and other impurities were neglected, and they 

 are entirely unglazed. 



They were baked by the application of fire to the interior, of suffi- 

 cient force to render the fragments, which are so abundant, imper- 

 ishable by time or exposure. 



A similar condition of art, under similar circumstances, is strik- 

 ingly exemplified by fragmental specimens of pottery of the Ancient 

 Irish. The specimens of that art laid upon the table, were taken 

 from a ^' clough'^ or mound in County Down, Ireland, which was 

 opened in the present year. 



These specimens show a ruder condition of art, and are orna- 

 mented by diagonal lines, also ruder than in the American specimens ; 

 but the material, both in treatment and composition, is similar, and 

 like them, were burnt by application of fire to the interior. 



As a closing remark, the condition of the arts, as exemplified by 

 the relics of the Stone Period, and the pottery which accompanied 

 it, are strikingly similar, wherever and whenever that condition 

 existed. The rude Ancient Briton, the early Scandinavian, fash- 

 ioned these implements as the savage of this day fashions them, 

 and doubtless supplied his wants, and gave expression to his aspira- 

 tions by the same rude means. 



Professor Trego considered the unsymmetrical and almond- 

 shaped specimens as merely unfinished or half-formed arrow- 

 heads and knives, and described rocks of red jasper near 

 Easton, at the base of which a manufactory of implements 

 existed in Indian times, immense numbers of perfect and 

 imperfect specimens remaining to the present day. Mr. 

 Foulke drew the attention of members to a recent article, 

 written by a learned member of this Society, in *' Black- 

 wood's Magazine," giving his opinion of the antiquity of the 

 remains found in the Valley of the Somme. Mr. Peale 

 alluded particularly to a specimen, placed by virtue of its 

 material among a group of chalcedonic lance-heads col- 

 lected from the region beyond the Mississippi, which was 

 picked up upon the banks of the Schuylkill. As that material 

 cannot be obtained in Pennsylvania the fact stands in evi- 

 dence of the wide range of Indian trade in articles of war- 

 fare. Dr. Coates illustrated the use of the weapons from 

 archseological history ; and, from a comparison of the pic- 



