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
Trams in Melbourne bus use also went into decline and buses have never proved as popular with passengers as trams at any time in Melbourne's history. By the 1970s Melbourne was the only Australian city with a major tram network. Melbourne resisted the trend to shut down the network for three major reasons: partly because the city's wide streets and geometric street pattern made trams more practicable than in many other cities; partly because of resistance from the unions; and partly because the Chairman of the MMTB, Sir Robert Risson, successfully argued that the cost of ripping up the concrete-embedded tram tracks would