Commission of the European Communities: Proposal for a Council Directive on Water Policy.-- Meeting of the Parties to the Convention on the Protection and Use of Transboundary Watercourses and International Lakes.-- Questions Raised on Bilateral Water Works in South America— Itaipu and Yaciret.-- Water Supply Between Arizona and Mexico.-- The Convention on the Law of the Non-Navigational Uses of International Water Courses.-- International Court of Justice Renders Judgement in Dispute Between Hungary and Slovakia on the Gabcikovo-Nagymaros project