⁷² On Aboriginal attitudes to land, see E. M. Eggleston, Fear, Favour and Affection, 1976. For all their concern with the envifonment, the Aboriginal people were not without their own development proiects.

"There were remarkable Aboriginal water control schemes at Lake Condah, Toolondo and Mount William in south western Victoria. These were major engineering feats, each involving several kilometers of stone channels connecting swamp and watercourses.

At Lake Condah, thousands of years before Leonardo da Vinci studied the hydrology of the norther Italian lakes, the original inhavitants of Australia perfectly understood the hydrology of the site. A sophisticated network of traps, weirs and sluices were designed…" (Stephen Johnson et al, Engineering and Society:An Australia perspective, 1995, p. 35)