Note 1 — Chapter IV · STATISTICS OF PLUMBISM[A]
Reading edition
Annual Reports of the Chief Inspector of Factories since 1898, especially for 1909, p. 19.
[2] Supplement to the Sixty-fifth Annual Report of the Registrar-General on the Mortality in Certain Occupations in the Three Years 1900, 1901, 1902, by Dr. John Tatham, pp. cxix-cxxii, Cd. 2619.