America's SST: Fallouts /2 (A long-time proponent of American development of the SST, A. Richard Seebass, who is associate professor of aerospace engineering at Cornell, nevertheless presents an unbiased review of the proponents' and opponents' viewpoints concerning American development of the supersonic aircraft. The article concentrates on the pollutant aspects of the SST and the economic arguments for its development.) ... Electricity: Tomorrow's Car Fuel? /12 (In an interview with Quarterly associate editor Vicki Groninger, Wally Rippel, a graduate student in the School of Electrical Engineering at Cornell, presents some of his views on the need for development of electrical power systems as an alternative to pollutionridden combustion process for driving automobiles.) ... The Ultimate Pollution /16 (Professor Franklin K. Moore, Chairman of the Department of Thermal Engineering at Cornell, presents an engineering strategy for controlling thermal pollution. He discusses approaches to achieving high thermal efficiencies at power plants and methods of getting heat into the atmosphere with as little disturbance to the environment as possible.) ... Vantage /26 (A photo feature depicting summer in Ithaca.) ... Faculty Publications /30 ... Editorial /36