Subject: silva - pine trees

From: [email-masked]
Date: Tue, 22 Apr 1997 21:58:53 -0400 (EDT)

Hi

My son is in the 4th grade in Burrillville, Rhode Island and is doing a
school project about the effects of boiling bark and what effect it has on
rusting.  While at elementary school my wife spoke to a biologist and he said
that of all the barks tested ( oak, birch and pine) the pine would have an
effect on the rusting process.  He stated that the pine has a
chemical/charastic in the bark that would probally coat the metal called
"silva."  I've been sufing the net tonight and have found nothing about
"silva."  

Would you kindly point me in the right direction to gain some information
about the effects of silva and pine barks charastics.

Thanks in advance for your help

Rick