The in?uence of inhibitory a?erents on the development of postsynap-tic dendritic arbors

A floor cleaning device comprises a housing having an electric motor mounted therein. A pair of spaced open tubs are formed in the housing for storing hot water and cold water, respectively. A plurality of substantially vertically positioned axles are rotatably mounted in the housing and extend from the bottom thereof. Each of the axles is drivably coupled to the motor. Each of a plurality of brush type accessories is adapted to be removably coupled to a corresponding one of the axles for rotation therewith. A handle is affixed to the housing for guiding the housing along a floor. A mop holding device on the handle removably holds a mop thereon. A wringer in the housing wrings a mop.