Obituary

Leonard Waldo, one of America´s foremost electrical and metallurgical consulting engineers, died at his home January 26 after a brief illness. He was born in Cincinnati on the 4th of May, 1853 and received his education and degrees at Marietta College and Harvard University. When he was twenty-one he was sent as assistant astronomer on the United States Transit of Venus expedition to Tasmania and was later connected with the astronomical observatories of both Yale and Harvard. During the World War, Doctor Waldo was consulting engineer on illuminants and shells for the War Department, and conducted extensive tests at Aberdeen Proving Grounds, Lakehurst. Recently he had been occupied in research work on atomic structure. He was a widely known microscopist, had received the medal of the Royal Society of Arts of London for his research work, was a member of the American Institute of Mining and Metallurgical Engineers, the Society of the Chemical Industry, the Iron and Steel Institute, the Microscopic Society, the Fatigue of Metals Committee of the National Research Council, and of the Engineers Club of New York. He became a member of the Institute in 1888.