CONTROL, that which checks or regulates anything (Fr. controle, older form contre rolle, a counter roll or copy of a docu ment used to check the original), and so especially command of body or mind by the will, and generally the power of regulation. In England the "Board of Control," abolished in 1858, was the body which supervised the East India Company in the adminis tration of India. In the case of "controller," a general term for a public official who checks expenditure, the more usual form "comptroller" is a wrong spelling due to a false connection with "accompt" or "account." A "control" or "control-experiment," in science, is an experiment used, by an application of the method of difference, to check the inferences drawn from another experiment.