Cyril P. Callister Cyril P. Callister Cyril Percy Callister (16 February 1893 – 5 October 1949) was an Australian chemist and food technologist who developed the Vegemite yeast spread. The son of a teacher and postmaster, and one of seven children, he attended the Ballarat School of Mines and later won a scholarship to the University of Melbourne. He gained a Bachelor of Science degree in 1914 and a Master of Science degree in 1917. In early 1915, Callister was employed by food manufacturer Lewis & Whitty, but later that year he enlisted in the Australian Imperial Force. After 53 days, however, he
British Caledonian in the 1980s felt that operating a turboprop on trunk routes would meet with passenger resistance as by that time most people had become accustomed to travelling on jets on these routes. In 1981, BCal applied to the UK and Australian authorities for permission to launch a fully fledged, three-class scheduled service between Gatwick and Brisbane (via Colombo and Melbourne), and between Gatwick and Adelaide (via Perth), at a frequency of two flights a week each, in both directions. BCal proposed to inaugurate what would have been the first ever scheduled operation "Down Under" by a wholly private, British independent airline with McDonnell