Articles Investigation of Solid Phase Microextraction Sampling for Organic Pesticide Residues on Museum Collections _________ Mark Ormsby, Jessica S. Johnson, _____________________________ Susan Heald, Lauren Chang, and Jenifer Bosworth 1 Testing Cultural Material for Arsenic and Interpreting the Results: A Case Study at Carnegie Museum of Natural History ________________________ Barbara Hamann 13 Pesticide Contamination on Native American Artifacts—Methods, Results from Six Case Studies, and Next Steps ___________ Peter T. Palmer, Matthew Martin, Gregory Wentworth, Salvatore Ostini, Chris Prospero, and Madeleine Fang 23 Detection and Mitigation Strategies for Contaminated NAGPRA Objects—The Seneca Nation’s Experience ________________________________________ Peter Reuben 33 Use of Handheld XRF for the Study of Pesticide Residues on Museum Objects _________ Nancy Odegaard, David R. Smith, Leslie V. Boyer, and Jae Anderson 42 Exposure of Museum Staff to Formaldehyde During Some Wet Specimen Activities _____________________ G. Edward Burroughs, Kathryn Makos, Catharine Hawks, _________________________________________________________________ and Timothy J. Ryan 49 On the Development, Care, and Maintenance of Collections of Reference and Subfossil Seed and Plant Macroremains _________________ Alwynne B. Beaudoin 55 The Effect of Relative Humidity on Mollusc Periostracum and the Use of Coatings to Prevent Loss ____________________________________________________ Joanna Morton 67 The Future of Collections: An Approach to Collections Management Training for Developing Countries ______________ John E. Simmons and Yaneth Muñoz-Saba 83 Colombian Herbaria__________________________ Yaneth Muñoz-Saba, Edgar L. Linares, _________________________________________________ Wilson Devia, and Fernando Gast 95 Using Capillarity for Determining and Maintaining a Polymer Consolidant Concentration after Solution Preparation __________________________ Tim J. Fedak 108 Book Reviews The Conservation of Fur, Feather and Skin, edited by Margot M. Wright __________ __________________________________________________________________ Madeleine W. Fang 113 Old Poisons, New Problems: A Museum Resource for Managing Contaminated Cultural Materials, by Nancy Odegaard, Alyce Sadongei and Associates_____ _____________________________________________________________________ Victoria Purewal 115