Illawarra (Region) (Geographic Keyword)
1-2 (2 Records)
Archive of papers from Volume 2 of the Australian Journal of Historical Archaeology, published by the Australian Society for Historical Society (ASHA) in 1984.
Innovation in the Manufacture of Salt in Eastern Australia: The 'Thorn Graduation' Process (1984)
Salt production in nineteenth-century Australia was often based on the evaporation of sea-water by boiling. This required large quantities of fuel because of the low salt-content of sea-water, and there were obvious advantages in pre-concentrating the brine before boiling. Although solar evaporation was a well-established way of doing this, a handful of Australian manufacturers attempted to use the 'thorn graduation' process, in which water was evaporated from the brine by trickling it through...