MIssing setting to go back to traditional mouse scroll
Mouse:

System Preferences +> Mouse =>
Uncheck “Move content in the direction of finger movement when scrolling or navigating”

Trackpad:

System Preferences => Trackpad => Scroll &amp; Zoom.
Uncheck “Scroll direction: natural”

 It seems depending on your hardware, the Preferences Panel changes. The magic-mouse has different settings then a normal mouse. This is for the settings panel with the mighty-mouse. Your mileage may vary.