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19. Dr. Weidlein has been prominently and actively identified with the Institute for over 40 years, serving as a senior fellow 1912-t6, and then as an executive staff member from 1916 to 1951, when he was made President. He is noted internationally as a scientist, research administrator, and author. Following his retirement he will spend several months in Europe on a Federal Government mission. Dr. Weidlein will continue to serve the Institute as a member of the Board of Trustees and will be available in an advisory capacity in the administration of research programs.ALBERT H. COOPER has joined the American Hard Rubber Co., New York City, as assistant to W. M. Bergin, Director of Research & Development. A well-known authority on organic and inorganic chemicals, Dr. Cooper will devote the major part of his time to furthering American's accelerated chemical research and allied production programs. He is the owner and manager of Pilot Engineering Co., industrial consultants on plant design and production problems; he also is head of the Dept. of Chemical Engineering at Pratt Institute in Brooklyn. J. J. LANDER has resigned as chemist with the Naval Research Lab., Washington, D. C., to assume the position of Director of Research of the Storage Battery Division, Electric Auto-Lite Co., Toledo, Ohio. J. S. DEWAR recently was promoted to President of National Carbon Co. Ltd., Toronto, Ont., Canada. He has the distinction of being the youngest chief executive in the history of the company.