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These four looseleaf binders contain forms for numbered experiments performed at Edison Chemical Works during the period 1916-1921. The forms provide the name of the proposer, the name of the reporter, and the purpose of the experiment. One book contains experiments aimed at improving portions of the battery manufacturing process or improving the specifications of chemical components. The experiments in the other three books relate to improving the iron and iron pockets for storage batteries. Many of the forms describe the manufacture of experimental cells. Most of the experiments were proposed and supervised by Charles F. (Frank) Hunter or John V. Miller. The experimenters include Andrew C. Ericksen, William Jackson, Harry C. Leonard, and C. E. Tice.