Research notes and statistical results on investigations relating to air pollution and respiratory conditions Research notes, tables, graphs and correspondence relating to research conducted on rates of respiratory conditions and/or deaths and presence of air pollution. These include correspondence and tables regarding pulmonary tuberculosis figures in males, 1949-1953 in England and Wales; graphs and tables relating to coal consumption from 1930s onwards, c. 1969; cigarette consumption and deaths and death rates relating to incidence of chronic bronchitis. 1955-1974