Charles Robert Sanger was a chemist and professor at Harvard University whose research centered on detecting and curing the causes of illness caused by chemicals in the home.
In 1886, Sanger was appointed as a chemistry professor at the United States Naval Academy in Annapolis, Maryland. He married Almira Starkweather Horswell the same year. The Sangers had two children while living in Annapolis, Mary in 1888 and Eleanor Sherburne in 1891. Sanger left Annapolis in 1892 to become Eliot Professor of Chemistry at Washington University in Saint Louis, Missouri. In addition he was professor of chemistry at the St. Louis Medical College and the Missouri Dental College, the medical and dental departments of Washington University. A son, Richard Sanger, was born there in 1894. In 1891, Sanger published a paper that stemmed from work he had begun with Hill during his doctoral study: "The Quantitative Determination of Arsenic by the Berzelius-Marsh Process, especially as Applied to the Analysis of Wallpaper and Fabrics."
Harvard
Sanger returned to Harvard in 1899 as an assistant professor in charge of the large Chemistry 3 course developed by H.B. Hill, who by this time was ailing, and was made full professor and director of the chemistry laboratory when Hill died in 1903.
As a teacher he was somewhat austere; all his students were expected to live fully up to his own standard, and he always retained some touch of the Naval discipline. In particular research with him was no easy matter — the same accuracy, the same thoroughness, the same limitless patience, that he showed in his own work he demanded of his students, but, as they saw he required nothing from them, which he did not exact from himself in even greater measure, they worked with enthusiasm, and felt for him an affection perhaps even deeper and stronger, than would have been inspired by an easier teacher.
The last years of Sanger's life were plagued with an undiagnosed illness — thought either to be related to a nervous cause or an unknown heart condition. He did everything possible to alleviate it, including making a trip to Europe in 1910, which was cut off after six months, as his symptoms were getting worse. "At times it had the symptoms and agonizing pain of angina pectoris; at others, it seemed to be an acute nervous dyspepsia; in the end it was shown to be an organic disease of the heart." The student view is reported in the Harvard Crimson's obituary of Sanger: "Throughout the fall Professor Sanger's health has been such as has brought with the continued strain of his work physical pain that at times approached torture." In its obituary, the Boston Globe said, "The death of Professor Sanger takes from the Harvard faculty one of its most distinguished scholars and teachers." Sanger died at home in Cambridge on February 25, 1912. He is buried in the family plot at Mount Auburn Cemetery in Cambridge.
Publications
Chemical Papers of C. R. Sanger:
"Ueber substituirte Brenzschleimsäuren. With Henry B. Hill. Ann Chem. Pharm 232, 43
"The Quantitative Determination of Arsenic by the Berzelius-Marsh Process, especially as applied to the analysis of Wall Papers and Fabrics." Proc. American Aca., 26, 24.
"The Chemical Analysis of three Guns at the U.S Naval Academy captured in Corea," by Rear Admiral John Rodgers, U.S.N. Proc. U. S. Naval Institute, 19, 53,.
"On the formation of volatile Compounds of Arsenic from Arsenical Wallpapers." Proc. Amer. Academy 29,
"On Chronic Arsenical Poisoning from Wall Papers and Fabrics," Proc Amer Academy 29, 148
Laboratory Experiments in General Chemistry, St. Louis, Published by the author, St. Louis,.
A Short Course of Experiments in General Chemistry, with notes on Qualitative Analysis.'' Published by the author, St. Louis,.