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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoPlainText>I will be setting up a table with a demonstration of microfading to run during the SPNHC conference Monday 11<sup>th</sup> – Thursday 14<sup>th</sup> July and will be looking for materials to test during the week. If you have material you would be interested in having fade-tested, bring it along and I’ll run it, or <span style='color:#1F497D'>I’ll </span>try to anyway. As an example, Jim Druzik from the Getty tells me he found “both Papilio phorcus (male) (phorcabilin)and Papilio (Graphium) sarpedon (sarpedobilin) highly light-sensitive relative to entomological specimens in general” when he tested them using his microfader. Feathers and insects need to have pigment rather than interference colours for microfading to tell you anything. Other things you might be interested in are inks and other archival materials, botanical specimens and so on.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>If you want to find out more about microfading go to <a href="http://www.microfading.com">www.microfading.com</a> where you will find references. The best discussion of how microfading, which is an accelerated light ageing method, relates to real life colour change is Paul Whitmore’s article ‘<i>Micro-fading to predict the result of exhibition: progress and prospects</i>’ which you can find at <a href="http://www.cmu.edu/acrc/Publications/micro-fading%20tests.pdf">http://www.cmu.edu/acrc/Publications/micro-fading%20tests.pdf</a><o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>See you there<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Bruce<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>