THE WATT AXD TIIK TKKVITUK'K KNGINES. 



147 



earlier atmospherics ; all three were still at work, over- 

 looked by Cam Brea hill and castle, once the resort of 

 Druid priests, whose sacrificial rites are still traced, by 

 the hollows and channels for the blood of victims on 

 the granite rocks. 



CARN BREA CASTLE. [W. J. Welch.] 



" MR. GlDDY, " CAMBORNE, March 2lst, 1806. 



"Sir, The trial between the two engines ended last 

 Monday, which was Dolcoath day. Boulton and Watt's engine, 

 per average of trial, 1 ton 20 cwt. 2 qrs., with 1 bushel of coals; 

 the other, 5 tons 11 cwt. 3 qrs., with 1 ditto, the same depth of 

 shaft. The adventurers ordered the new castings that were made 

 for another of Boulton and Watt's engines to be thrown aside, 



L 2 



