MINERAL MATERS. 3.9 WATER. 31.2 *Butter PROTEIN. Digestible. 1.0 Undigestible. - FATS. Digestible. 85.8 Undigestible. 1.7 CARBOHYDRATES. Digestible. 0.5 Undigestible. - MINERAL MATERS. 2.0 WATER. 9.0 *Oleomargarine PROTEIN. Digestible. 0.4 Undigestible. - FATS. Digestible. 83.9 Undigestible. 3.3 CARBOHYDRATES. Digestible. 0.0 Undigestible. - MINERAL MATERS. 2.1 WATER. 10.3 *Sugar PROTEIN. Digestible. 0.3 Undigestible. - FATS. Digestible. - Undigestible. - CARBOHYDRATES. Digestible. 96.7 Undigestible. 0.0 MINERAL MATERS. 0.8 WATER. 2.2 *Wheat flour (very fine). PROTEIN. Digestible. 7.6 Undigestible. 1.3 FATS. Digestible. 1.0 Undigestible. - CARBOHYDRATES. Digestible. 74.4 Undigestible. 0.8 MINERAL MATERS. 0.3 WATER. 14.6 * Wheat flour (Medium) PROTEIN. Digestible. 9.5 Undigestible. 2.1 FATS. Digestible. 0.8 Undigestible. - CARBOHYDRATES. Digestible. 70.4 Undigestible. 1.8 MINERAL MATERS. 0.4 WATER. 15.0 *Wheat flour (coarse whole wheat) PROTEIN. Digestible. 8.2 Undigestible. 2.7 FATS. Digestible. 1.8 Undigestible. - CARBOHYDRATES. Digestible. 66.4 Undigestible. 5.3 MINERAL MATERS. 1.2 WATER. 14.4 * Wheat Bread. PROTEIN. Digestible. 7.7 Undigestible. 1.2 FATS. Digestible. 1.9 Undigestible. - CARBOHYDRATES. Digestible. 54.9 Undigestible. 0.6 MINERAL MATERS. 1.0 WATER. 32.7 *Black bread. PROTEIN. Digestible. 4.5 Undigestible. 1.6 FATS. Digestible. 1.8 Undigestible. - CARBOHYDRATES. Digestible. 43.3 Undigestible. 5.3 MINERAL MATERS. 1.5 WATER. 43.8 *peas. PROTEIN. Digestible. 19.7 Undigestible. 3.2 FATS. Digestible. - Undigestible. - CARBOHYDRATES. Digestible. 55.7 Undigestible. 2.1 MINERAL MATERS. 2.5 WATER. 15.0 *Corn (maize) Meal. PROTEIN. Digestible. 7.9 Undigestible. 1.2 FATS. Digestible. 3.8 Undigestible. - CARBOHYDRATES. Digestible. 68.7 Undigestible. 2.3 MINERAL MATERS. 1.6 WATER. 14.5 *Rice. PROTEIN. Digestible. 6.2 Undigestible. 1.2 FATS. Digestible. 0.4 Undigestible. - CARBOHYDRATES. Digestible. 78.7 Undigestible. 0.7 MINERAL MATERS. 0.4 WATER. 12.4 *Potatoes. PROTEIN. Digestible. 1.5 Undigestible. 0.5 FATS. Digestible. 0.2 Undigestible. - CARBOHYDRATES. Digestible. 19.7 Undigestible. 1.6 MINERAL MATERS. 1.0 WATER. 75.5 *Turnips. PROTEIN. Digestible. 0.7 Undigestible. 0.3 FATS. Digestible. 0.2 Undigestible. - CARBOHYDRATES. Digestible. 5.6 Undigestible. 1.3 MINERAL MATERS. 0.7 WATER. 91.2 Since the elements are seldom, if ever, found in the proper proportion in any food substances, it becomes necessary to exercise judgement in selecting them, so that something like a well balanced diet may be obtained; so as a further aid to enable the reader to make his selection judiciously, we would call attention to Table A and Table B below. Table A shows the proportion of various foods that is ordinarily digested, while Table B points out the time required for different articles of food to digest. TABLE B.