[Nhcoll-l] light damage to microscope slides?

[Woodward, Jon]

Hi all,

We've gotten an exhibition loan request for some microscope slides which preserve the histological serial sections of a hagfish embryo. The slide prep was done (very nicely) in 1926. The stain was recorded as "Alum cochineal and Orange G." The sections are a little faint, and we're worried that putting them on display (on an LED light table) might result in further fading or other damage. The borrower proposes to put the light on a motion sensor, so the slides would only be lit when a visitor was nearby, rather than 24/7, which seems sensible. I would welcome anyone's thoughts about possible risks and mitigations.

Thanks,
Jon


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Jon Woodward
Digitization Manager, Collections Operations
Harvard Museum of Comparative Zoology
26 Oxford St.
Cambridge, MA 02138
617-495-8205
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