Kevin,  
  
> Does anyone know where Keynes calls money "a barometer of our   
ignorance and   
> uncertainty about the future" ?  
  
The following looks close enough:  
  
"our desire to hold Money as a store of wealth is a barometer of the   
degree of our distrust of our own calculations and conventions   
concerning our future".  
  
J.M. Keynes (1937), "The General Theory of Employment," QJE, Vol.51, No.  
2, p.216.  
  
Yours,  
  
Masazumi Wakatabe