MCI Project Summaries 2008 - Smithsonian Institution
MCI Project Summaries 2008 - Smithsonian Institution
MCI Project Summaries 2008 - Smithsonian Institution
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<strong>MCI</strong>6094.1 Lepidoptera Genitalia Slides<br />
<strong>MCI</strong> Staff: Walter R. Hopwood, Mel J. Wachowiak<br />
Five samples from microscopic slides where the medium was crystallized were provided.<br />
NMNH would like to recover the pieces and remount them. Previous trials at remounting were<br />
not good. Medium is soluble in xylene, but the pieces were too far gone. Recommendations on<br />
how to best treat the slides for recovery were needed.<br />
<strong>MCI</strong> 6094.2 Degradation of Embedding Medium on Prepared Microscope Slides<br />
<strong>MCI</strong> Staff: Mel J. Wachowiak, Jia-sun Tsang, Tony Maiorana, Rebecca Gieseking, Marion F.<br />
Mecklenburg<br />
Eight cleared-leaf specimen slides in transparent and translucent resin under cover glass<br />
were submitted to determine the type (natural or synthetic) or brand of resin, if there were any<br />
additives detectable, if the resin was homogeneous, if there were alternatives to these resins, and<br />
if the procedure used to remount samples in Paleobotany was practical for large numbers<br />
(thousands) of slides. If the medium of older samples of cleared leaf specimens can be dissolved<br />
and transferred to a new slide, it would be ideal; if it can be done more efficiently, and they will<br />
not degrade, it is preferred. Predicting when, and which samples might degrade, would be useful.<br />
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