Head-Body-Sep-End-->
<!--X-Body-of-Message-->
<PRE>

Matthew, 
	.	Sorry, I take it back. 

	.	In that case you're doing a fantastic job, in my opinion. 

	.	We can worry about dimensional analysis a bit later, when
things are a bit more settled. 



Cheers   				Graham Horn
National Data Standards Unit
Australian Institute of Health and Welfare 
================================================
Phone:      	02.6244.1094  
Fax:          	02.6244.1199  
E­mail:    	Graham.Horn@aihw.gov.au &lt;<A  HREF="mailto