Ground Water Problems, Volume 11 presents the proceedings of the International Symposium held in Stockholm, Sweden in October 1966. The book covers the influence of topography on ground water formation; the ground water in Precambrian rocks in Southern Sweden; and the ground water conditions in the sedimentary rocks of Scania. The text also includes papers on the short-time variation of the ground water; some hydrogeological aspects on aquifers, especially Eskers; and the chemistry of ground waters. The tracers for ground water investigations; the protected areas for ground water sources; and the ground water production from the bedrock of Sweden are also encompassed. The book further tackles the ground water draft from earth layers; artificial replenishment of ground water; and the excursion to the Verka district.