I am undertaking collaborative research on the Nonesuch Formation with Esther Stewart of the Wisconsin Geological and Natural History Survey (WGNHS). Ms Stewart has been ï¿½ï¿½ï¿½ and continues to be ï¿½ï¿½ï¿½ a consummate professional. She is knowledgeable, dedicated, and hardworking, and her efforts have yielded new insights into the origin of these 1.1 billion-year-old rocks. These insights are important for the scientific community, and they are also relevant to the minerals industry, the oil and gas industry, as well as those who are evaluating possible locations for underground CO2 storage. This is a great example of a multi-disciplinary project that is yielding useful results for a variety of end-users. It's a credit to Ms Stewart and the Wisconsin Geological & Natural History Survey.