Concealed Facts 

I don't know about the exact concealment-per-line ratio, but one of the more blatant ones is stating "Skiing at the pace of a dog team is a strenuous activity", while it is entirely kept quiet about the hardships for Scott and his mean with the man-hauling  - No mention of the fact that man-hauling is the far more energy-consuming and exhaustive means of transportation... Yet anouther sweep under the carpet.