Brass--addendum

For more information about cleaning brass and the damage done to it
by nitrogen-containing compounds, please refer to the work by
horological conservator Jim Moss at

    Ammoniated Cleaning Solutions

    <URL:http://www.antiqueclockconservation.com/scc.htm>

Jim can be contacted through his web site and probably has some
knowledge concerning the darkening of the brass during aqueous
cleaning.

Linda S. Roundhill
Art and Antiquities Conservation
18121 157th Ave NE
Woodinville WA 98072
425-481-0720


                                  ***
                  Conservation DistList Instance 18:11
                 Distributed: Thursday, August 12, 2004
                       Message Id: cdl-18-11-002
                                  ***