At the end of World War II, Georgia Tech had about $240,000 (equivalent to $ in ) annually in sponsored research. Important investments during Rosselot's administration at the Engineering Experiment Station included the purchase of an electron microscope in 1946 for $13,000 (equivalent to $ in ), the first such instrument in the Southeastern United States and one of few in the United States at the time. The Research Building was expanded, and a $300,000 (equivalent to $ in ) Westinghouse A-C network calculator was given to Georgia Tech by Georgia Power in 1947.