At 1400 hours all company commanders and one other officer from each company and a few others left by truck for MacDonald Pass to try living under winter conditions and try a new mountain ration ... On arrival at the selected spot the party broke up into groups of four and built shelters and fires of many different types. The Mountain ration, which comes in four varieties, is packed in boxes, each box containing the rations of 4 men for 3 meals, this proved to be more than the average man could eat. They included powdered soup and milk, canned meat and butter, cereal, chocolate, biscuits, compressed fruits, sugar, tea and coffee and powdered lemon.