Here is the edit last week in which explanatory text helping readers know how to use the Volcano vaporizer was deleted allegedly in order to simplify caption  cur  prev  Mjpresson talk  contribs  bytes Vaporization simplify caption undo httpenwikipediaorgwindexphptitleCannabissmokingdiffoldid  Because unlike the other vaporizer picture complete with whip drawtube etc the Volcano picture conveys no idea of how the device is used I propose that the following text be reinserted   After filling with vapors the balloon top is ready to remove and inhale from