[36]. Idem., p. 382.

[37]. Statistisches Jahrbuch für das Deutsche Reich, 1904.

[38]. Diseases of Children, by Ashby and Wright, pp. 14 et seq.

[39]. See, e.g., Infants’ Milk Depots and Infant Mortality, by G. F. McCleary.

[40]. Report on Les Crèches, by Dr. Eugène Deschamps, Congrès International d’Hygiene et de Démographie à Paris, 1900.

Other works consulted include: How the Other Half Lives, by Jacob A. Riis; The Battle with the Slum, by the same author; The Diseases of Infancy and Childhood, by L. Emmet Holt, M.D., LL.D.

System of Medicine, edited by Clifford Allbutt.

Antenatal Pathology, by J. W. Ballantyne, M.D.

The Study of Children, by Francis Warner, M.D., London, F.R.C.S., F.R.C.P.

The Nervous System of the Child, by the same author.