Number of days play for all the Tests in Australia between 1900 and 1940. (Only one Test in the 19th century went into a 6th day):
1901-2: 3, 4, 6, 4, 4
1903-4: 6, 4, 5, 6*, 3
1907-8: 6*, 6, 6, 4, 6
1910-1: 5*, 4, 6, 4, 4 (South Africa)
1911-2: 6, 4, 5, 4, 7**
1920-1: 5, 4, 6, 5, 4
1924-5: 7...