The smoke problem. 1912. (In Report of the Economic survey of Pittsburgh, p. 31-45.)
[34.] Redfern, Harry.
Effect of coal smoke on buildings. 1912. (In Papers read at the Smoke Abatement Conferences, March ... 1912, p. 9-14.)
[35.] Rideal, S.
Effects of town air on metal work. 1912. (In Papers read at the Smoke Abatement Conferences, March ... 1912, p. 15-20.)
[36.] Wallin, J. E. Wallace.
The doctrine of formal discipline, two neglected instances of transfer of training. 1910. (In Journal of educational psychology, v. 1, p. 168-171.)
See discussion and references in Heck, W. H., Mental discipline and educational values. 1911.
Publications of the Smoke Investigation
Bulletin No. 1. Outline of the Smoke Investigation. 16 p. Free.