7d Defoe {Crusoe's creator}. I.e. Daniel Defoe (ca. 1659-1661–1731). 51d ASL {Communication syst.}. ASL = American Sign Language . 57d Earp {O.K. Corral figure}. I.e. Wyatt Earp (1848–1929). 75d sal {___ soda}. sal soda is another name for soda ash , sodium carbonate . 95d mss {Slush pile contents: Abbr.}. mss =