Sunshine records; a comparison of sunshine statistics for urban and rural stations. 1912. (In Papers read at the Smoke Abatement Conferences, March ... 1912, p. 23-28.) 13. =Lorand=, Arnold. Old age deferred. Philadelphia. 1912. p. 255-261. 14. =Mache=, H. & =Schweidler=, E. V. Die ätmospharische elektrizität. 1909. p. 36-39. 15. =Morselli=, Henry. Cosmico-natural influences which act on suicide. 1882. (In “Suicide, an essay on comparative moral statistics,” p. 36-79.) 16. =Oliver=, _Sir_ Thomas. Dust and fume, foes of industrial life. 1912. (In Lancet, v. 183, p. 865-871.) 17. =O’Connor=, John J. _jr._ Is Progress being made against black smoke in Pittsburgh? Unpublished notes. 18. =P.=, W. E. The effect of weather on everyday life. 1899. (In Nature, v. 61, p. 56-57.) 19. =Saito=, Yoichiro. Experimentelle Untersuchungen über die quantitative absorption von staub durch tiere bei genau bekanntem staubgehalt der heft. 7 dr. 1912. (In Archiv für hygiene, v. 75, p. 134-151.) 20. =Shipley=, Maynard. Effects of immigration on homicide in American cities. 5 diag. 1906. (In Popular science monthly, v. 69, p. 160-174.) Crimes of violence in Chicago and New York. 1908. (In Popular science monthly, v. 73, p. 127-134.) 21. =Smith=, Bailie W. B. Should the domestic smoke nuisance be any longer tolerated? 3 diag. 1912. (In Papers read at the Smoke Abatement Conferences, March ... 1912, p. 62-67.) 22. =Smoke=. 1911. (In Encyclopædia Britannica, 11th ed., v. 25, p. 275-277.) 23. =Sunlight= in the Tropics. 1913. (In Journal of the American Medical Association, v. 60, p. 208.) 24. =Sunshine=. 1911. (In Encyclopædia Britannica, 11th ed., Ill., v. 26, p. 106-110.) 25. =Wallin=, J. E. Wallace. Optical illusions of reversible perspective. 1905. p. 204-212. 26. =Ward=, Robert de Courcy. Climate. New York. 1908. 372 p. 27. =Weather= and mental action. 300 w. 1895. (In Popular science monthly, v. 47, p. 568.) 28. =Weather= influences. 1868. (In Once a week, v. 19, p. 274-277.) 29. =Yerkes=, Robert M. The psychological aspects of illuminating engineering. 1910. (In Lectures on illuminating engineering, v. 2, p. 575-604.) On the aesthetics of smoke 30. =Church=, _Sir_ Arthur. Notes on the action of coal smoke on building stones and mural paintings. 1912. (In Papers read at the Smoke Abatement Conferences, March ... 1912, p. 1-4.) 31. =Heaton=, Noel. Influence of smoke on decorations. 1912. (In Papers read at the Smoke Abatement Conferences, March ... 1912, p. 5-8.) 32. =Holden=, John. Pollution of air as affecting the architect and his work. 1888. (Manchester and Salford Noxious Vapors Association. Lectures on air pollution, no. 7, p. 87-96.) 33. =Holdsworth=, J. T. 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.)