For this expedition I added lemon-juice prepared as for use aboard ship, but made into tablets and packed in air-tight containers, and dried milk packed in small air-tight packages, each package containing only one day’s ration, thus avoiding undue exposure to air. Three different vitamins are described by investigators: The anti-rachitic fat-soluble A vitamin, The anti-neuritic[24] water-soluble B vitamin, and The anti-scorbutic water-soluble C vitamin. I have spoken only of the last; the first hardly needs consideration here. The anti-neuritic vitamin is more easily preserved and supplied than the anti-scorbutic, and for the prevention of beri-beri the following foods were added to the ship’s dietary: Rice (containing the germ), wholemeal flour, oatmeal, dried eggs, dried peas, beans and lentils, and marmite, a yeast product, for adding occasionally to soups and stews. For sledging conditions: Marmite, ½ oz. per man per day (to be placed in the “hoosh”). In preparing the supplies we carried a large variety of foods, for it is of importance to prevent monotony in meals. This Shackleton always realized. The following from the “The Worst Journey in the World” is interesting: “Meanwhile Shackleton’s hut was very pleasant at this time of year ... and the food. Truly Shackleton’s men must have fed like turkey cocks for all the delicacies here....” The addition of a few delicacies adds little to the cost of an expedition, but means a great deal to those engaged in it. I think it would surprise most people to know what can be done in the way of supplying wholesome and attractive foods in a preserved state by modern plants. There should be one standard of quality only: the best, and goods should be obtained only from firms of the highest repute. The elimination of poisons from the system is aimed at firstly, by thorough preliminary examination, as already indicated, to avoid sources of poisons in the body itself, e.g., the mouth, teeth, throat, and nasal passages with their accessory sinuses, and, secondly, by ensuring that no bad or “high” food shall be eaten.