Fred Schueler asks how to mount museum-specimen unionid shells onto masonite boards for display. I'll leave it to our shell-show experts to answer about techniques, but would just like to point out that it is best not to use specimens from the permanent collection for a traveling display, particularly if they are to be mounted. It is much better to find expendable shells, because they are very likely to get damaged or to lose their collection data. At the very least, the periostracum is likely to flake under the changing climatic conditions of different rooms, and Fred says that he wants to keep that part intact. If only a few expendable shells are available, maybe it would be better to mount high-quality photographs and place a few shells below that people can handle. Happy weekend, everyone. Don't let the shell bug bite. Andrew K. Rindsberg Geological Survey of Alabama