I am going to make one more comment on this matter,  
having now apologized for misleading folks and misattributing  
remarks to Bruce Caldwell that he did not make.  
     There are two broader history of thought issues at stake.  
One is where did someone get an idea.  The other is where  
did they get their label for the idea.  Regarding the first, although  
I do not have a specific page cite in front of me, I certainly  
remember reading in Hayek him arguing that Adam Smith  
had the idea of "spontaneous order," although clearly he did  
not use that label.  
     I do not know if Hayek made the label himself  
up independently, whether it came to him from his reading of  
Mill, who clearly did use the label, or from reading someone  
else.  The only way to know for sure regarding this latter would  
be if Hayek himself (or someone else in a position to know  
authoritatively) wrote down specifically that he indeed did take  
the label from a particular source other than his own ruminations.  
And has been argued by several folks, it may not really matter  
all that much anyway.  
  
Barkley Rosser