Artificial ice and cold air machines 48–91 Air machines 88 Extent of artificial refrigeration 90 Fruit storage plant at Waldo, Fla. 88 Historical sketch 84, 85 Latest inventions, the 88 Principles of ice machines 85, 86 Systems employed 86, 87 Uses of 90, 91 Care, handling and marketing of crop 56–63 Care of ice in houses 56 Coupon tickets, use of 62 Lowering ice from house 58 Marketing 60 Packing ice for shipment 58, 60 Taking out ice from house 58 Ventilators, how to use 41, 56, 58 Wasting of ice, causes and preventatives 56 Cold storage 63–86 Construction of house for 63 Co-operation, benefits of 78 Extent and benefits of 63, 64 Preservative power for various articles, extent of 65 Principles of 67 Temperature, variation of 65 Use of 64, 67