'How much poison are you breathing?', Harpers
Tags: 1950s; 1959; 1959-10-1; Air quality; California; Cosing, Art; Los Angeles; Lungs; Measurement; Motor vehicles; Other; Pollution control devices; Schaeffer, Charles; Smog; United States; Waste and Pollution
'The explosive tricycle', Harpers
Tags: 1930s; 1936; 1936-11-1; Design and construction; Engineering; Hiram Percy Maxim; Maxim, Hiram Percy; Mechanical Engineering; Motor vehicles; United States
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