Has anybody out there had experience with construction projects that involved adding an addition onto an existing building. We will have such a project underway here over the next few years and we are especially concerned about the effect of vibrations on collections on exhibit and in storage. Our exhibit areas range from single glass cases to huge, open dioramas and out collection storage areas run the gamut and include a number of mobile, compact storage installations. Any advice or suggestions will be much appreciated. If you send messages to me directly, I'll summarize and post to the list if there's enough interest. Thanks very much. * Judy Turner * [log in to unmask] * * Milwaukee Public Museum * 414/278-2730 * * 800 W. Wells Street * fax 414/278-6100 * * Milwaukee, WI 53233 * *