Sorry for the post to all but my direct post to GS Nelaon bounced back to me.
By the By-- maybe a sanetter has Ron's phone number for GS Nelson (see below).
GS NElson,
Try calling Ron Korzcak at USDA/BARC. He organized conference on rock pwders a
while back. His # is --- darn can't find his # try the secretary at Soil
Microbial Systems Lab 301-504-8163.
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Terry Schettini, Ph.D.Rodale Institute, 611 Siegfriedale Road
Kutztown, PA 19530-9749 USA
terry_schettini.parti@parti.inforum.org
610-683-1416, FAX 610-683-8548
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