[60 
obtaining a more pure, and better kind kind of iron, 
than any we have hitherto been pofleft of, and which 
I am certain this fand, under proper management, is 
capable of producing. 
Feb. 5, 
I 
1763* 
am, 
Sir, with the greateft refpeft. 
Your mod obedient 
humble fervant. 
Henry Horne* 
XIV. Ex- 
