Ice storage

2212. To keep ice in sacks or heaps in the open air, an elevated circular platform (fig. 666. a) is raised of earth; on this the ice is piled up in a conical form during a severe frost, and the addition of water enables the builder to form the cone very steep. On this cone wheat-straw is laid a toot in thickness (b), over this a stratum of faggot-wood or spray (c), and finally another thick stratum of thatch or long litter of any sort (d). In this way ice will keep a year, care being taken to expose it to the air as short a time as possible in taking out supplies.