Sorry, Scott, but it *IS* delta. "del" (you can look it up)
	is a symbol that was invented for use in partial derivatives.
	The greek letter which you have been using all these years to represent 
	isotopic compositions is called "delta". Physicists call it 
	delta; chemists call it delta; Greeks call it delta. Why should
	you (or anyone) call it by any other name?


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Prof. Henry Schwarcz				Tel: (905)525 9140 x24186 
University Professor
Dept. of Geology				Fax: (905)522 3141
McMaster University
Hamilton, Ontario, L8S 4M1 			email: [log in to unmask]
Canada
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