CHAPTER VIII

REFRIGERATION AS APPLIED TO ICE-CREAM-MAKING 101-128

Terms used, 89. _Natural Ice_: The ice field, 90; The ice-house, 91; Harvesting and storing, 92; Amount of ice needed, 93; Use of ice and salt mixture, 94. _Mechanical Refrigeration_: Principles of mechanical refrigeration, 95; Materials used in mechanical refrigerating systems, 96; Operation of refrigerating machines, 97; The compression system, 98; Parts of a compression system, 99; Operation of direct expansion compression system, 100; Location of evaporating coils, 101; Notes on operating compression system, 102. _Absorption Systems_: Operation of absorption refrigerating systems, 103; Arrangement of double pipe and atmospheric absorption machines, 104.