Lawrence W. Livingston
Apple Computer United Kingdom Limited
6 Roundwood Avenue 
Stockley Park
Uxbridge, Middlesex   UB11 1BB
United Kingdom


Martin J. Pulvermacher
National Research Council
Institute for Research in Construction
Bldg. M-20
Montréal Road
Ottawa, ON  K1A 0R6  Canada


Raymond Baker  
Montefiore Medical Center
The University Hospital for the Albert Einstein
College of Medicine
111 East 210th Street
Bronx, NY  10476-2490   U.S.A. 


Peter. J. Hennessey
Martin Marietta Energy Systems, Inc.
Plant ORNL   MS 6186   
P.O. Box 2008  Betheal Valley Road
Oakridge, TN  37831-2008
U.S.A.