C[hristopher]. C[olumbus]. Langdell [1826-1906] was Dean of the law faculty at Harvard Law School from 1870 to 1895, and developed administrative programs that endured. After his death a chair in the law school was named in his honor and one of the school's buildings was named Langdell Hall. He is known for his introduction of the "case" system of legal instruction as seen in this work. His other works include Cases on Sales (1872); Summary of Equity Pleading (1877, 2nd ed., 1883); Cases in Equity Pleading (1883); and Brief Survey of Equity Jurisdiction (1905).