11 Smells That Are Slowly Disappearing | Mental Floss

11 Smells That Are Slowly Disappearing | Mental Floss

Ditto fluid, burning leaves, diesel fumes, new car smell (it's different now), chalk dust, the gum that used to be in baseball card packs, dust burning on vacuum tubes, phone books, Polaroid film, Magic Markers, and cap guns. "The sole company that still manufactures ditto fluid in the U.S. only sells a few thousand gallons per year these days, as opposed to the over 100,000 gallons they delivered during the 1970s."