PLATE III.— Notes on the Geological History of Blackford Hill 

 and its Agates. 



[Photo. J. J. McB.] 



BLACKFORD HILL: The Corbies Craig and the Braid Valley 

 from South-West Crag. 































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BLACKFORD HILL: The Dry Valley with the Corbies Craig 

 and South-West Crag. 



