79. Foods containing phosphorus

80. Foods containing iron

81. Oven heat regulator

82. Illustrating the amount of heat represented by one Calorie

83. Comparative weights of 100-Calorie portions of food

84. 100-Calorie portions of food

85. Longitudinal section of wheat grain, showing bran, floury part, and
germ

86. Growing yeast plants

87. Graduated measure and dipper for measuring the ingredients of modified
milk

88. Some species of molds

89. The four types of bacteria

90. Canning foods

91. Rack for holding jars

92. The composition of fruits and fruit products