[ [2] Annual Report of the Chief Inspector of Factories for 1901, p. 213.

[ [3] Ibid., p. 242.

[ [4] Ibid. for 1906, p. 272.

[ [5] H. O. Hofman: Metallurgy of Lead. 1906.

[ [6] Annual Report of the Chief Inspector of Factories for 1900, p. 438.

[ [7] Ibid. for 1910, p. 154.

[ [8] Special Report above, p. 15.

[ [9] Layet: Quoted by Oliver in Dangerous Trades, p. 288.

[10] Dixon Mann: Forensic Medicine and Toxicology, p. 477.

[11] Sommerfeld: Bekämpfung der Bleigefahr, p. 220.