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nULLETIN OK THK NATURAL HISTORY SOCIETY. 
are composed of deep pittings, and are not smoothly rubbed in. 
Again, although these are the only areas of the pittings of any 
size upon the stone, there are some scattered pittings of the same 
character, which is to be expected if they are natural, but not if 
they are artificial. I commend the stone to the study of those 
learned in such matters. It would not be difficult to secure its 
transport to a museum. 
