This comment updates an earlier one which set out the Wisconsin position on the use of extrinsic evidence in statutory construction up to 1940.1 As the court typically makes use of extrinsic aids without explaining their use, the pattern of legal doctrine presented is derived primarily from what the court has done rather than from what it has said. Consequently, only a few of the rulings in this area are headnoted or digested. This comment attempts to aid practicing attorneys in locating relevant citations.