340 IP s t e I 3 i a 



phase of the same process are the spherical 

 concretions. These structures from a clicstnut 

 to hunch-eds of tons in size, are among the most 

 interesting geological features of the shore. The 

 smallest seldom attract attention; they are of 

 the size of marrowfat peas. But east of the 

 Station, past two or three projecting points of 

 the coast, is an area just above high tide where 

 the sandstone layers are rpiite nearly horizontal. 

 ]Many tide- pools are here, washed out of the 

 softer sandstone, and here also are many con- 

 cretions. One spot contains so many of these 

 si)herical masses from two to four inches in di- 

 ameter that it has been named the "Devil's 

 Billiard Table." A hundred paces from it, 

 towards the Station, is another spot where the 

 spherical bodies are quite as numerous but of 

 only one-fourth to one-half the size of those on 

 the Devil's table. 



^lore generally distributed, however, are the 

 larger concretions from the size of a quart 

 measure to that of a five-gallon jug. These 

 frequently are encircled by an outer ring or two, 

 reminding one of pictures of the planet Saturn 



