The Geological Features. 



167 



ported the stone in their hands, a Hne of carriers 

 being planted all the way between the quarry and 

 the castle, and each individual handing the huge lump 

 forward to his next neighbour, who in his turn sent 

 it still farther on towards its destination." If the 

 Picts, unlike the builders of the Pyramids, possessed 

 no mechanical contrivances, the labour of transporting 

 blocks of stone by hand from Craigmillar quarry to 

 the top of the Castle rock at Edmburgh, must have 

 been efreat indeed! 



Carboniferous Fern 

 {Sphenopteris affifiis), Burdiehouse (Nat. size.\ 



