Sir Philip Egerton and P.M. Duncan. Reports on paper by R. Owen on Fossil mammals of Australia, Part 5, July 1871-September 1871 Unit ID: 7.128-29 Date: 1871-07/1871-09
Sir Philip Egerton. Report on paper by R. Owen on Fossil mammals of Australia, Part 4, 1870-12-19 Unit ID: 7.47 Date: 1870-12-19