Vegetable oils with high proportions of unsaturated fats, the kind that all the authorities push because they contain no cholesterol, go rancid rapidly upon very brief exposure to air.
"How and When to Be Your Own Doctor"
Dr. Isabelle A. Moser with Steve Solomon
In certain fields, oil and gas have been found in the tops of anticlines in water-saturated rocks, and farther down the flanks of folds or in synclines in unsaturated rocks.
"The Economic Aspect of Geology"
C. K. Leith
Whenever, in such cases, the air begins to move and the wind blows, the saturated air is mixed with the larger portion of unsaturated air, and evaporation is again increased.
"Dry-Farming"
John A. Widtsoe