THEIR SOURCE AND ORiaTN. 



265 



Conclusion. 



The following facts seem to come out definitely from the 

 investigations here recorded. 



(1) That the stones of the North-east Circle, containino- 

 the largest monoliths, are all of one kind (Silicious Breccia), 

 and probably all from one source — the Harptree neighbour- 

 hood ; (2) That the great Circle and South-west Circle are 

 composed of smaller stones of diverse origin ; (3) That the 

 stones in the Cove are of one kind of rock (Dolomitic 

 Breccia), which differs from that whereof the stones of the 

 North-oast Circle are composed, and of which there is only 

 one stone in tlio Great Circle and one in the South-west 

 Circle. 



I think it may fairly be inferred from those facts, that the 

 North-east Circle is of different date* from that of the other 

 circles, and that the Cove is also of different date. Whether 

 the North-east Circle of larger monoliths is older or later 

 than the Great Circle, with its smaller diverse monoliths, 

 and what is the relative date of the Cove, I do not pretend 

 to say. It is a matter of mere speculation whether the 

 smaller circle of large monoliths, or the larger circle of 

 small monoliths, was {.ho earlier. I imagine, liowevor, tliat 

 the circles were of gradual growth. 



* When I Bay of different date, I do not mean to imply, erected by a 

 different race or tribe. 



