Summarizes the effects of arsenic, lead, zinc, mercury, and cadmium on human health, indicates the sources of the elements in water, and considers the possibility of students in high schools analyzing water for trace amounts of the elements. (AL)

Opportunity cost, externalities, efficiency, distribution and population are discussed in relation to environmental issues. A list of readings, categorized in terms of how they might be used in a course, is presented, as are suggested ways of organizing lectures and discussions on environmental economics. (JB)

The emphasis of the humanistic aspects of physics and the need to make physics understandable to the public are viewed as important in reestablishing public and political support for scientific research. (CP)

The conditions of international trade are examined as they prevail now and are likely to develop after the transitional period ending 1975; currency problems are discussed; and economic and consequent political changes are assessed. (Author/JB)

The roles played by technical experts in the federal policy-making process which led to the initiation, continuation, and, after ten years, the termination of the United States' civil supersonic transport project are considered as a case study of the influence of technical experts in presenting countervailing political pressures to represent the…