bibliography
Geology

Clarke, I., Cook, B. (eds) (1989) Victorian Geology Excursion Guide. Australian Academy of Science, Canberra.

Gregory, J. W. (1912) The Geography of Victoria. Whitcombe and Tombs.

Cochrane, G. W., Quick and Spencer-Jones (1991) Introducing Victorian Geology. Geological Society of Australia, Victorian Division, Melbourne. [available from G.S.A. Vic. Div. ph. (03) 412 7081]

Hills, E. S. (1975) Physiography of Victoria : an Introduction to Geomorphology. Whitcombe and Tombs.

James, A.V.G. (1920) The physiography and geology of the Bulla Sydenham area. Proc. Royal Society. 32(22): 323-349.
James, A.V.G. (1970) Factors producing columnar structure in lava and its occurrence near Melbourne, Australia. Journal of Geology. 28:458-469.

Rosengren, N.J. (1986) Sites of Geological and Geomorphological Significance in the Western region of Melbourne. Report prepared for ARI Ecological Inventory and Evaluation Section, Dept. Conserv., For. and Lands, Victoria.

Thomas, D.E. Keble R. A. (1937) Ordovician and Silurian Rocks. Proc. Royal Society of Victoria. 45: 58-60.

Thomas, D.E. (1911) Excursion to Sydenham, Bulla and Diggers' Rest. Victorian Naturalist. 28:51.