Potential impacts of sand and gravel extraction on the Hunter River,New South Wales

A number of investigations have been undertaken by the New South Wales Water Resources Commission to determine the regional and compound effects of large scale extractive industries on the stability of the Hunter River, New South Wales. Sedimentologic studies of bed material suggest that the Hunter River upstream of Denman has an armoured gravel bed that is immobile during regulated releases from Glenbawn Dam but is disrupted by moderate but less than bankfull flows. Annual bedloadyields have been computed by the bedload rating-flow duration technique for five river gauging stations. Approximate sand and gravel budgets for selected reaches of the Hunter River demonstrate that the present annual extraction rate from temporary sediment storages within the channel greatly exceeds the transport rate upstream of Denman and is approximately equal to the transport rate downstream of Denman. River degradation is imminent if extractive industries continue operating in the channel of the Hunter River     

Day-to-day variations in nearshore bar patterns on a small sandy beach through a lunar tidal cycle

Nearshore water circulation and bar patterns at Coledale, New South Wales, were surveyed daily over thirty-six consecutive days, from 3 November to 8 December 1978, to identify sequences of changes that might occur in response to spring-to-spring tide cycles of fourteen days, changing barometric and wind conditions associated with the passage of anticyclonic weather systems across the coast, and day to day variation in the nearshore wave regime. During the survey the bar patterns tended to vary from transverse bars, through a composite arrangement incorporating longshore and transverse bars, to a longshore bar pattern as the tide changed from its spring to neap tide phase. However, this sequence was too brief to unequivocally establish variations in nearshore bar pattern that might be attributed to the fourteen day, spring-to-spring tide cycle. Nevertheless, morphologic changes occurring in response to wave regime fluctuation at Coledale were broadly in accord with studies from elsewhere by Dolan et al. (1979, 1982), and Clarke and Eliot (1982, 1983) in that bars and rips were systematically distributed along the beach. At Coledale, bars tended to relocate approximately 0.4 and 0.75 of the distance along the beach from its southern end. The preferred bar spacing closely matches hypothetical standing waves trapped between the headlands of the Coledale embayment. Temporally, the nearshore morphology is highly responsive to wave regime changes such that, as primary breaker heights decrease and remain below H_max=1.0m, the bar pattern changes from longshore through mixed to transverse bar patterns within three to five days. On one occasion the bar pattern switched from a longshore to a transverse bar pattern within twenty-four hours.     

Australian liberalism and corporatism

George Brandis, Tom Harley and Don Markwell (eds), Liberals face the Future: Essays on Australian Liberalism, Melbourne, Oxford University Press, 1984, pp. 386, $14.99 (paper) and Katharine West, The Revolution in Australian Politics, Melbourne, Penguin Books, 1984, pp. 116, $4.95 (paper).

John Rickard, H.B. Higgins: the rebel as judge. Sydney, Allen & Unwin, 1984, pp.350. $29.95 (cloth).

Stuart Macintyre, Militant: the life and times of Paddy Troy, Sydney, Allen & Unwin, 1984, pp.225. $19.95 (cloth), $9.95 (paper).

Alan Metcalfe, In Their Own Right: The Rise to Power of Joh's Nationals, St. Lucia, University of Queensland Press, 1984, pp.268. $20.00 (cloth)

Peter Love. Labour and the Money Power: Australian Labour Populism 1890–1950, Melbourne University Press, 1984, pp.240. $9.95 (paper).

L.F. Crisp, George Houston Reid: Federation Father; Federal Failure? Canberra, ANU, 1979; The Later Australian Federation Movement 1883–1901: Outline and Bibliography, 1979; George Richard Dibbs: Premier of New South Wales, Prophet of Unification, 1980; Federation Prophets Without Honour: A.B. Piddington, Tom Price, H.B.Higgins, 1980; The Unrelenting Penance of Federalist Isaac Isaacs, 1897–1947, 1981; Charles Cameron Kingston: Radical Federationist, 1984.

Philip Toyne and Daniel Vachon, Growing Up the Country: The Pitjantjatjara struggle for their land, Melbourne, Penguin Books and McPhee Gribble, 1984, pp.157. $6.95 (paper)

Jim Kemeny, The Great Australian Nightmare, Melbourne, Georgian House, 1983, pp. 130. $14.95 (paper).

Peter Sekuless, The Lobbyists, Sydney, Allen & Unwin, 1984, pp. 145. $14.95 (paper).

Jennifer Aldred (ed.), Industrial Confrontation, Sydney, Allen and Unwin and Australian Institute‐of Political Science, 1984, pp.111. $15.95 (cloth), $7.95 (paper).

Glenn Withers (ed.), Bigger or Smaller Government? Papers from the sixth symposium of the Academy of the Social Sciences in Australia, 1982, Canberra, Academy of the Social Sciences in Australia, 1983, pp. ix, 115. $8.50 (paper)

Commonwealth Grants Commission, Equity in Diversity: Fifty Years of the Commonwealth Grants Commission, Canberra, Australian Government Publishing Service, 1983, pp. 180. $15.60 (cloth), $9.90 (paper).

Robin Walker, Under Fire: A History of Tobacco Smoking in Australia, Melbourne, Melbourne University Press, pp. 155. $19.50 (cloth).1

Hugh Saddler, Energy in Australia: Politics and Economics, Sydney, Allen and Unwin,1981, pp.205. $7.95 (paper)

Brian Kennedy, A Tale of Two Mining Cities: Johannesburg and Broken Hill 1885–1925, Melbourne, Melbourne University Press, 1984, pp. 146. $25.00 (cloth)

Basile Kerblay, Modern Soviet Society, London, Methuen, 1983, pp.321. $37.50 (cloth), $23.95 (paper).

Gary Littlejohn, A Sociology ofthe Soviet Union, London, Macmillan, 1984, pp.286. $16.95 (paper).

Talal Asad and Roger Owen (eds), Sociology of “Developing Societies”: The Middle East, London, Macmillan, 1983, pp.264. $11.95 (paper).

Richard Mulgan, Democracy and Power in New Zealand: a study of New Zealand politics, Auckland, Oxford University Press, 1984, pp.171. $A12.99 (paper)

Rex Mortimer, Stubborn Survivors, ed. H. Feith and R. Tiffen, Monash Papers on South East Asia No. 10, 1984, pp.xvii, 180. $6.00 (paper).

Philip Lowe and Jane Goyder, Environmental Groups in Politics, London, Allen and Unwin, 1983, pp. 208. $18.95 (paper)

John Surrey (ed.), The Urban Transportation of Irradiated Fuel, London, Macmillan, 1984, pp. 336. $14.95 (paper)

Ian Hancock, White Liberals, Moderates and Radicals in Rhodesia 1953–1980, London and Sydney, Croom Helm, 1984, pp.230. $31.95 (cloth).

Peter Hain, Political Trials in Britain, London, Allen Lane, 1984. pp 318. $29.95 (cloth).

Anthony Hyman, Afghanistan Under Soviet Domination, 1964–1983, London, Macmillan, 1984, pp. 235. $18.95 (paper).

Ivor Crewe and Anthony Fox, British Parliamentary Constituencies: A Statistical Compendium, London, Faber and Faber, 1984, pp.397. $67.95 (cloth).

Frederick C. Teiwes, Leadership, Legitimacy, and Conflict in China: From a Charismatic Mao to the Politics of Succession, London, Macmillan, 1984, pp.167. $21.95 (paper)

John Wong, The Political Economy of China's Changing Relations with Southeast Asia, London, Macmillan, 1984, pp.246. $14.95 (paper)

Adrian Leftwich (ed.), What is Politics? The Activity and its Study, Oxford, Basil Blackwell, 1984, pp. 172. $25.00 (cloth), $11.95 (paper).

Ted Benton, The Rise and Fall of Structural Marxism: Althusser and his Influence, London, Macmillan, 1984, pp. 259. $14.95 (paper).

Ben Fine, Marx's Capital, London, Macmillan, second edition, 1984, pp. 87. $9.95 (paper).

Stefan Collini, Donald Winch and John Burrow, That Noble Science of Politics: A Study in Nineteenth‐Century Intellectual History, Cambridge University Press, 1983, pp. 385. $25.00 (paper).

William W. Bostock, Approaches to Political Explanation, Melbourne, RDI Press, 1983, pp.123. $9.00 (paper).

Ronald Beiner, Political Judgment, London, Methuen, 1983, pp. 199. $17.95 (paper).

John F. Wilson, The Politics of Moderation: An Interpretation of Plato's Republic, New York, University of America Press, 1984, pp.213. $12.25 (U.S.) (paper).

Aristotle, The Athenian Constitution, trans. P.J. Rhodes, Penguin Books, 1984, pp. 198. $6.95 (paper).

Carol O'Donnell, The Basis of the Bargain: Gender, Schooling and Jobs, Sydney, Allen and Unwin, 1984, pp.186. $19.95 (cloth), $9.95 (paper).

Dorothy H. Broom (ed.), Unfinished Business: Social Justice for Women in Australia, Sydney, Allen and Unwin, 1984, pp.213. $24.95 (cloth), $10.95 (paper).

S. Fabian and M. Loh, The Changemakers: Ten Significant Australian Women. Milton, Jacaranda Press, 1983, pp. 190. $14.25 (paper).     

SPATIAL COMPETITION WITH LOCATION-DEPENDENT COSTS*

This paper investigates the behavior of spatially-competitive firms whose costs depend on their locations. Necessary and sufficient conditions for optimum locations are derived. Comparative-statistics analysis of the equilibrium shows that the responses of firms to changes in input and output transport rates depend on the properties of consumer demand curves or are ambiguous in sign.