The Leonard G. Berry Medal is awarded annually for distinguished service to the Association in an elected role. The award recognizes significant service to the Association in one or more areas that may include leadership or long-term service in an elected or appointed office. The medal is named after Leonard G. Berry (1914-1982), a founding member of the MAC, editor of The Canadian Mineralogist and its predecessor for 25 years and first winner of the MAC Past-Presidents? medal. The medalist is chosen by a committee consisting of the two immediate past recipients of the medal and one member-at-large and is chaired by the Vice-President (ex officio). Nominations are encouraged from the membership at large and should be sent to Iain M. Samson (Department of Earth and Environmental Sciences, University of Windsor, Windsor, Ontario N9B 3P4, CANADA; phone: (519) 253-3000 ext. 2489; fax: (519) 973-7081; e-mail: ims@uwindsor.ca by December 31, 2012.