Professor Charles Robert Sanger '81 died at his home, 72 Sparks street, Cambridge, yesterday morning at 1 o'clock, of heart failure and a general nervous breakdown.

Professor Sanger had been in ill-health for some time and last year suffered from an attack of nervous prostration. He went to Europe seeking to regain his health, but had not been there more than a month or two when he became worse, and was obliged to return to America. His health then improved and last fall he attempted to give Chemistry 3, but again broke down and was obliged to give it up.

Biography of Professor Sanger.

Charles Robert Sanger was born in Boston on August 31, 1860. He graduated from Harvard College in 1881, where he obtained the degree of Master of Arts in 1882, and of Doctor of Philosophy in 1884. He was the permanent secretary of his class. From 1881 to 1882 and again from 1884 to 1886, he was an assistant in the Harvard Chemical Laboratory, but in 1886 he was called to the United States Naval Academy at Annapolis, as Professor of Chemistry. In the same year, he married Almira Starkweather Horswell, of Boston. In 1892 he was called to Washington University, St. Louis, Mo., as Professor of Chemistry, where he remained until 1899 when he came to Harvard as Assistant Professor of Chemistry. On the death of Professor H. B. Hill in 1903, he was made a full professor, and the Director of the Chemical Laboratory. In 1905 Mrs. Sanger died; and in 1910 he married Miss Eleanor Davis of Cambridge, who survives him as do his three children. The funeral will take place at the Christ Church, Cambridge, tomorrow noon.

While first at Harvard as an assistant, he worked under Professor Hill on the constitution of pyromucic acid. In recent years he has confined his work chiefly to the study of minute traces of arsenic and antimony by the Gutzeit method. Professor Sanger has not written any books; but has published a number of papers on subjects that he has investigated. He was a Fellow of the American Academy of Arts and Sciences, a member of the American Chemical Society and a member of the Deutsche Chemische Gesellschaft.