I didn't see this mentioned anywhere on here already when I searched for it, but forgive me if someone else already posted this:
A typo in the Wind Oracle Revelations: (bold-faced word is missing)
Air Barrier (Ex): You can create an invisible shell of air that
grants you a +4 armor bonus. At 7th level, and every four
levels thereafter, this bonus increases by +2. At 13th level,
this barrier causes incoming arrows, rays, and other ranged
attacks requiring an attack roll against you to have a 50%
miss chance. You can use this barrier for 10 minutes per day
per oracle level. This duration does not need to be consecutive,
but it must be spent in 10-minute increments.