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.