Fowler's Vacola specialises in bottling jams and other foods at its manufacturing plant in Sydney. Fowler's Vacola The Fowler's Vacola jar is a molded glass jar used in canning to preserve food. It is the most popular home canning system in Australia. The system was developed in 1915 in Melbourne, Australia, by Joseph Fowler (28 February 1888 – 24 April 1972), who migrated from England in 1912, at his home in Hawthorn, Victoria, and became very popular. The Fowler's Vacola system uses glass jars, single use rubber ring seals and pressed metal lids, much like American Mason jars first patented in 1858,
David S. Mason from Indiana University in 1978. Mason has received research grants from the National Science Foundation, the Rockefeller Foundation, the American Council of Learned Societies, the National Council for Soviet and East European Research, the International Research and Exchanges Board, and the Social Science Research Council. David S. Mason David Stewart Mason (born November 23, 1947) is Professor Emeritus of Political Science at Butler University in Indianapolis. His most recent book, "The End of the American Century" (Rowman & Littlefield, 2008) explores the interrelated dimensions of America's domestic and international decline. That book has been translated and published in China, by