Dear colleagues and friends today is my last day in the office at Purdue. I hope that over the last fews days I have had a chance to say good bye to you personally. If not, please accept my apologies. I do look forward to seeing you when I visit Purdue from time to time in my capacity as adjunct professor. In the mean time, please do come and visit Annette and I in Sheffield where we can host a University visit, and/or a trip to the Peak District and Chatsworth House :-) My new contact details are: Email: james.litster@sheffield.ac.uk Address: Department of Chemical and Biological Engineering The University of Sheffield Mappin Street Sheffield S1 3JD UNITED KINGDOM best regards Jim Jim Litster, PhD Professor of Chemical Engineering Professor of Industrial and Physical Pharmacy Director, Center for Particulate Processes and Products Purdue University Forney Hall of Chemical Engineering, Room G027A 480 Stadium Mall Drive West Lafayette IN 47907-2100 USA +1 765 496-2836 (phone) +1 765 494-0805 (fax) jlitster@purdue.edu