NOT KNOWN DETAILS ABOUT LAUGHING GAS

In the Betty Boop cartoon "Ha! Ha! Ha!" opens with supposedly Max Fleischer's hand drawing Betty Boop with a sheet of paper. When Max leaves the studio, Koko comes out on the inkwell for that very last time, and commences taking in the sweet bar Max experienced still left within the table. Shortly he develops a toothache, so Betty attracts a dentis