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gallons (680 × 10 6 m3), which is equivalent to 20 times the annual replenishment, would be the security against the failure of surface sources during a drought. The demand for water in South Lincolnshire might be met until the end of the century by using the ground-water resources of the Lincolnshire Limestone in conjunction with water from the Rivers Welland and Nene. The flow of the River Glen could be maintained during dry periods by pumping ground water from the Limestone or, if the Empingham Reservoir on the Welland is constructed, by releasing compensation water from the reservoir and pumping it from the River Gwash to the River Glen near Belmesthorpe. Minimum flows required in the South Forty Foot Drain system could be met by pumping ground water from the Limestone or by transferring water from the River Glen to the South Forty Foot Drain. Recommendations for further ground-water studies are given. These include mathematical and analogue studies in order to derive a better understanding of the ground-water flow problems and the inter-relationship between ground and river water, and to assess the effects of proposed developments, including artificial recharge. F.D. Water Resources Newsletter. Australian Water Resources Council, Canberra, A.C.T., No. 12, June 1969. This Newsletter, like its predecessors, records much of interest in research and development of the water resources of Australia. as well as information of hydrological interest from other regions. Under Water Resources Development is given an account of the ECAFE Regional Conference on Water Resources Development held at Bangkok in 1968, and progress in the application of Computers, Telecommunication and Automation to the water resources of Australia is reviewed. Under Water Resources Surveys and Investigations the effects of the Western Australian Meckering earthquake of 14 October, 1968, on the water levels in the wells of the Perth coastal plain, at a distance of 75 miles, are described; the issue of the 14 new 1 : 1000000 sheets of the Queensland Hydrogeological Series, of the Groundwater Resources Maps of Australia, is announced, and a review is given of the State water resources investigations.
TROY L. PEWE (Ed.) : The Periglacial Environment: Past and Present. McGill-Queen's University Press, Montreal. 1969. 554 p. 6 × 9 in. $ 25. Twenty-five scientific papers, based on the Symposium on Cold Climate Environment and Processes, VII Congress of the International Association of Quaternary Research held in Fairbanks, Alaska.